I see there are some mixed reviews, but I am really loving this gadget so far.  It has been really helpful in picking up kitty litter and dust on my wood floors and low carpets.  It seems to have a good amount of power, especially when running the beater brush.  The battery is lasting quite a while, too.  It's nice that it came with an extra battery.  I think the handle is a bit flimsy, and could have a better design.