I'm impressed with the suction of the Shark Wandvac self empty system with charging base!  It's a powerful vacuum considering it is cordless. The self emptying feature is my favorite!  I've always hated having to vacuum after emptying the vacuum cleaner. It's madness!  This is the first vacuum I've ever had that I don't feel like I need a smaller vacuum to vacuum my big vacuum's mess. Lol. Works well on pet hair and my long hair doesn't get twisted up either.