This is my 4th Shark vacuum (going back to 2013 when I ditched Dyson) and I must say, this is by far the best one yet. While I love my Duo Clean NV807, the bristle brush constantly required hair removal. The PowerFins on this vacuum are fantastic, allowing me to vacuum without having to clean the brush roll each time. It is light weight and has great suction, a noticeable difference with my previous Sharks. The soft brush roll is also improved, adding stiff bristles to the soft ones, and also seeming to be larger than my previous DuoClean vacuum. Very impressed and happy with my purchase! Shark customer for life!