I'm an owner of a Shark Rocket vacuum (HV301). I was skeptical about the original purchase, but we wanted a vacuum for the main floor that was small and could handle the steps upstairs. It needed to do hardwood, and get under furniture. Our old vacuum was best for carpet, and while it did well, it was a heft to carry up and down stairs. This is where the original Rocket fit into our household. It worked very well in this roll, but eventually we went robotic for our day to day.
Our primary compliant about the original Rocket was the size of the head. While it never loses suction as the advertisements will tell you, it just didn't cover much area and took a long time to clean our downstairs square footage. That, and the fact the dustbin was non-removable and extremely small meant that it was a bit of a pain to use.
Shark certainly listened to these sort of complaints when designing the Rocket Complete. First of all, it retains the light-weight size that makes the Rocket series appealing. The floor head is the same size, but due to the dual brushes, it seems to require less re-sweeping. The first brush is microfiber, and the second is more of a bristle style. It also retains compatibility with the accessories from the first generation, so it's easy to add this to a Rocket household. One can never have to many vacuums around when little ones are running around. On that subject, my son is quite sensitive to vacuums, so it's really nice to see them keep the noise level to a minimum. The Rocket Complete is quieter and stronger than the original Rocket.
Another improvement from the original is you can easily detach the floor head with your foot, instead of having to bend down. There is a foot switch that detaches it, so you can use the attachments without much effort. As for attachments, inside the box you'll find a upholstery tool, dusting tool, and crevice tool. Additionally there is a long wand that is designed to go under appliances. I can't tell you how much this excites me, as I know after moving a few appliances how nasty it can get under there. Don't expect the first time you use it to get everything, but if you keep using it, it'll do a great job getting a majority of the dust bunnies. My only complaint is with the crevice tool, which has a sliding dusting attachment. The attachment effectively limits the depth you can use the crevice tool to about 4". I might be missing something there, but while the attachment itself says its removable - but all I seem to be able to do is slide it back up.
The Rocket Complete addresses another compliant I had, the dustbin being permanently attached to the motor. This made emptying the container cumbersome. My wife is sensitive to dust, so I lug the motor and all 30' of cord out to the garage and empty it into the trash out there. The Rocket Complete's dust bin detaches, making this a much easier feet to accomplish. Coupled with the fact it's nearly twice as big, its a huge usability improvement over the original Rocket. Additionally, there are LED lights on both the floor attachment and the vacuum base itself, which mades it easy to see those harder to pick up pieces or stains you might otherwise miss.
So with robotic vacuums at my command, would I still want a Rocket Complete? Absolutely. This is probably the perfect companion to those with robots. It's small enough to easily store, it's easy to pull out and sweep, but it has the capacity to do a nice full cleaning and really dig out what those weaker vacuums cannot. It also fits in places they can't, and under appliances as well. I'm very impressed with this next generation, and like the direction Shark is going with the Rocket line.