Customer Ratings & Reviews
- Model:
- BU3521
- |
- SKU:
- 6583331
Customer reviews
Rating 4.5 out of 5 stars with 277 reviews
(277 customer reviews)Rating by feature
- Cleaning Quality4.7
Rating 4.7 out of 5 stars
- Maneuverability4.7
Rating 4.7 out of 5 stars
- Ease of Assembly4.8
Rating 4.8 out of 5 stars
Customers are saying
Customers highly value the lightweight design, powerful suction, and long battery life of this cordless stick vacuum. The auto-empty feature and HEPA filtration are also frequently praised, while some users mention the dustbin could be larger. Many appreciate the ease of use and the helpful LED lights.
This summary was generated by AI based on customer reviews.
Rated 5 out of 5 stars
Nice
||Posted . Owned for 1 week when reviewed.This reviewer received promo considerations or sweepstakes entry for writing a review.Only thing I wish it had was a trigger switch not a button on the end of it.
I would recommend this to a friendRated 5 out of 5 stars
Easy clean up
||Posted . Owned for 7 months when reviewed.This reviewer received promo considerations or sweepstakes entry for writing a review.Pick up the smallest of dirt, crumbs, hair, everything!
I would recommend this to a friendRated 5 out of 5 stars
Bestbuy shopper
||Posted . Owned for 3 weeks when reviewed.This reviewer received promo considerations or sweepstakes entry for writing a review.Have had other stick vacuums, but this model is much better than Dyson and much cheaper in cost. Very pleased!!
I would recommend this to a friendRated 5 out of 5 stars
Lovenit
||Posted . Owned for 1 week when reviewed.This reviewer received promo considerations or sweepstakes entry for writing a review.Best Vacuum so far, compared with Dyson is cheaper and does the work
I would recommend this to a friendRated 5 out of 5 stars
Great Vacuum!
||Posted . Owned for less than 1 week when reviewed.This reviewer received promo considerations or sweepstakes entry for writing a review.We like how well it cleans our carpet and hard floors. Our favorite part is that it empties itself.
I would recommend this to a friendRated 5 out of 5 stars
Excellent
||Posted . Owned for 3 weeks when reviewed.This reviewer received promo considerations or sweepstakes entry for writing a review.I used to.have dyson v8 but this one is Better than dyson.better price and the run time is more than dyson
I would recommend this to a friendRated 5 out of 5 stars
Good for home with pets
||Posted . Owned for 1 week when reviewed.This reviewer received promo considerations or sweepstakes entry for writing a review.This vacuum is awesome,. Also i like the hand held part! I have several dogs and it really gets the loose hair up.
I would recommend this to a friendRated 5 out of 5 stars
Wish we would've gotten this sooner
||Posted . Owned for 1 week when reviewed.This reviewer received promo considerations or sweepstakes entry for writing a review.Love this vaccum. Works great on hard wood floors and rugs. Self emptying is a great feature.
I would recommend this to a friendRated 5 out of 5 stars
Great Value!!
||Posted . Owned for 1 week when reviewed.This reviewer received promo considerations or sweepstakes entry for writing a review.Great Vacuum! We love it!! We really needed an affordable vacuum! It does a great job!
I would recommend this to a friendRated 5 out of 5 stars
my cleaning buddy
||Posted . Owned for 1 month when reviewed.This reviewer received promo considerations or sweepstakes entry for writing a review.love the exchangable parts for the different jobs around the house
I would recommend this to a friendRated 5 out of 5 stars
Delivered as committed
||Posted . Owned for 1 week when reviewed.This reviewer received promo considerations or sweepstakes entry for writing a review.Best Buy Best Service ever received from any of the electronics stores
I would recommend this to a friendRated 3 out of 5 stars
Loved it while it last
||Posted . Owned for 2 months when reviewed.This reviewer received promo considerations or sweepstakes entry for writing a review.Had this product for 2 months and it stopped working Loved how it work but it’s not very trusted
No, I would not recommend this to a friendBrand response from SharkNinja Product Expert
Posted .Hello,
Thank you for taking the time to leave a review.
We are truly sorry to learn that your Clean & Empty Cordless Stick Vacuum has stopped functioning after just a few months of use, particularly since you were pleased with its performance and cleaning capabilities. Your satisfaction means a lot to us, and we want to make sure you have the best experience with your vacuum. Please feel free to reach out to us at 1-855-427-5127, and we will do everything we can to fix this issue for you.
Kind regards,
Shark Clean
Rated 1 out of 5 stars
Don’t buy it
||Posted .This reviewer received promo considerations or sweepstakes entry for writing a review.I’m shocked this vacuum has any positive reviews. It has weak suction, smells terrible even with the self-emptying feature, and if you’re short and right-handed, the airflow blows directly into your face—disgusting. I’ve owned cheaper $80–$100 vacuums that worked far better. I usually love Shark products, but this one is a complete dud. Do yourself a favor and choose a different model.
No, I would not recommend this to a friendBrand response from SharkNinja Product Expert
Posted .Hi Kim, thank you for your review and for bringing these issues to our attention! We’re truly sorry to hear about your experience. You pointed out that the Shark BU3521 has weak suction, emits a foul odor even with the self-emptying feature, and that the airflow directly hits your face if you’re short and right-handed. This is not representative of our usual standards, and we completely understand how frustrating this must be for you. We genuinely value feedback like yours, as it helps us make improvements and enhance our service for you and others in the future. Best regards, Shark Clean
- Pros mentioned:Ease of use, Suction power, Weight
Rated 5 out of 5 stars
Shark Cordless Vacuum Clean & Empty Stick is Magic
|Posted .This reviewer received promo considerations or sweepstakes entry for writing a review.The Shark Cordless Clean and Empty Stick Vacuum plus Auto Empty System is what I have been looking for in a Stick Vacuum. Convienent and quick usage with maximun suction of cleaning of dust and debris. It was as easy as 1,2,3 to set up and put on the charging Dock for the night to fully charge before the first use. I first used in Auto Mode going from the livingroom carpet to the kitchen hardwood floor and the auto adjust from Magenta to Blue color is really cool. The Shark Stick Vaccum is very light weight and and moves across the carpet so effortlessly in quickly picking up dust and debris. You can toggle between Eco, Auto and Boost selections but Auto does not work in Boost Mode. In Boost Mode that I will be using for the bedroom in hard to reach underneath the bed places where dust gathers a lot. The Handheld Vacuum is an extra bonus to have with easy access that includes detachable Service and Pet Multi Tool. The Shark Cordless Stick Vacuum Auto Empties immediately and sucks the dust and debris from the Vacuum Stick as soon as you place it back on the Dock dust bin. Once the Stick Vacuum is empty it starts charging back again. I just love the simplicity and power cleaning all packed together in The Shark Cordless Clean & Empty Stick Vacuum plus Empty System.
I would recommend this to a friend Rated 5 out of 5 stars
Good buy
||Posted . Owned for 1 week when reviewed.This reviewer received promo considerations or sweepstakes entry for writing a review.Works well and efficient for cleaning the household
I would recommend this to a friendRated 5 out of 5 stars
Makes vacumming fun!
||Posted . Owned for 1 month when reviewed.This reviewer received promo considerations or sweepstakes entry for writing a review.We use this daily! Best appliance I’ve purchased!!
I would recommend this to a friendRated 5 out of 5 stars
SHARK TASTIC
||Posted . Owned for 1 week when reviewed.This reviewer received promo considerations or sweepstakes entry for writing a review.WORKS REALLY WELL I REALLY LOVE THIS VACUUM CLEANER
I would recommend this to a friendRated 1 out of 5 stars
HORRIBLE CUSTOMER SERVICE
||Posted . Owned for 1 month when reviewed.This reviewer received promo considerations or sweepstakes entry for writing a review.I"m giving it a 1 because their customer service is horrible. We have a defective part, which they acknowledged. But, not surprisingly they don't have the part in stock. So I can call in a month and follow up. They will not do any follow up nor send it if it comes in. Plus, because there is only a 90 day period for free shipping, although I've called within the 90 day period I will have to pay for shipping if it comes in later than 90 days. It cleans well but this type of customer service is not something I will deal with again.
No, I would not recommend this to a friendBrand response from SharkNinja Product Expert
Posted .Hi Lynn,
Thank you for taking the time to leave a review.
We're genuinely sorry to hear that you've had a frustrating experience with our customer service regarding the defective part of your stick cordless vacuum, the warranty policy, and the stock availability for the replacement you need. Your disappointment is totally understandable, and we want to assure you that your concerns are being heard, so we'll absolutely share your feedback with the relevant teams internally for consideration on future service. Please don't hesitate to reach out to us at 1-855-427-5127 so we can explore more available warranty options for you and help ensure you're getting the most from your product.
Kind regards,
Shark Clean
Rated 5 out of 5 stars
Vacuum
||Posted . Owned for 2 weeks when reviewed.This reviewer received promo considerations or sweepstakes entry for writing a review.Excellent product customer service was knowledgeable
I would recommend this to a friendRated 3 out of 5 stars
Its okay
||Posted . Owned for 4 months when reviewed.This reviewer received promo considerations or sweepstakes entry for writing a review.I think its okay. Could be better . Wish it can pick up m&ms or something lol
No, I would not recommend this to a friendBrand response from SharkNinja Product Expert
Posted .Hello,
Thank you for taking the time to leave a review.
We're so sorry to hear that you wish it could pick up M&M'S. We will absolutely share your feedback with the relevant teams for consideration on future products. Nevertheless, if you consider there's low suction, please don't hesitate to reach out to our team by phone at 1-855-427-5127, so we can help with it.
Kind regards,
Shark Clean













