I bought this unit a couple of years ago, to replace an existing shredder that died of old age. I actually bought one or two other models from Best Buy and ended up returning them because - frankly - they sucked. If you have enough money to buy this shredder, and Best Buy is the place you want to buy the shredder, this is your best option, and you will love it.
My only concern, and it's not even that big of a deal, is that the "head" is not removable from the stand/base. Probably more secure/safe that way, but it makes cleaning slightly more difficult.
I shred a lot of documents, all the time, and just shredded about 5 or 6 years of back-log. One of my folders had a stack of paperwork from the vet, and the vet had affixed a metal rabies tag inside. I would not recommend you trying this at home - this was an accident. It got stuck at first: I couldn't get it to move forward, and it was getting stuck in the rim trying to reverse. But with rocking back and forth (forward and reverse) the shredder finally SHREDDED the entire dog tag. It did not just pass the dog tag through mauled. It shredded it into tiny pieces just like the paper. I was floored!
So...this isn't a $500 shredder, but you get every penny out of this shredder, plus you get the benefit of the Best Buy return policy, which is good. If you shred a LOT of paperwork, I'd suggest buying the extended warranty plan. I strongly dislike extended warranties, but things with moving parts, like shredders, sometimes have issues not related to use, and it's great to be able to simply being it back and get a new one.
If this unit were to break, I'd replace it with the same model if I could. I like the micro-fine shredding, because that provides improved security/safety. Consumers really don't need a smaller cut than this ('microcut" is pretty good), as you can see if you demo the unit in the store, you won't be able to reassemble, especially if you shred things regularly.
I wanted to write this review because I shredded more than four, stuffed, 13-gallon trash bags worth of shredding in two days. Talk about duty cycle! If I had killed this shredder because of the dog tag, or even shredding constantly for two days, I would have just written it off as "oh well, I killed it!" But it keeps on running.
Nice product that I would certainly recommend to anyone serious about shredding at this price point.