i have been using these for years... quick pick ups, car floor and seats etc.  Why?  FAST n EASY.  Glad to see the suction finally getting to very GOOD levels for a handheld.  As battery technology advances we reap the benefits in products like this.  The ergonomics is great... a tad heavy maybe for the ladies or arthritic at over 2.5lbs, but for most, easily manageable for quick pick ups.  The the waste eject is simple and intuitive.  picks up pet hair very well... dont expect super long use of course, otherwise battery would get too heavy.  I would say they got nearly everything right with this handheld vac.