I purchased this vac because I have two cats and roomie with allergies. So far he's doing alright! We had just moved in and after just a week (without the cats) it picked up so much from the carpet! Very lightweight and very easy to maneuver. The only reason I didn't give it 5 stars was because the accessories cant all be hung on the vac itself, there's no hook for some of the attachments so you have to set them aside and it does not stand on its own very well, its so light that it falls easily from its own weight. However the way it swivels and the suction is great, and like I said, does help my roomates allergies a lot. No sniffles or red eyes! 

Pros: great maneuverability and great filter for allergies
Cons: Have to set some attachments aside, tips over a bit too