I bought this shredder because I needed a small machine to fit in a cupboard. The size is good for me and I find that it shreds well. However, here are a few things you should keep in mind:
1. The 7-sheet shred capacity is misleading. In order to shred a sheet of paper, you need to fold it in thirds. That gives you three layers, which for the purposes of this shredder, would be 3 "sheets." If you stack 2 pieces of paper and fold them in thirds, you get 6 "sheets." The shredder will handle this, but it can't do any more than that. So it's really a 2-sheet capacity shredder.
2. The power switch is not labeled very clearly. It's hard to tell what mode the machine is on.
3. You need to empty the shredder bin quite often, and open it frequently to tamp down the paper shreds. Otherwise, the shredded paper will get pulled back up into the mechanism and jam it. Emptying the shred bin and running the shredder in reverse for a while will clear it. I've had this same problem with full size shredders too, but since the shred bin on this one is so small, you need to empty it more often.
Other than the things I mentioned above, I find this shredder to be useful for shredding the occasional credit card offer. It fits nicely inside a cabinet shelf.