I was beside myself when I saw this bad boy arrive.  I immediately set it up to get it charged. Within a few hours it was fully charged and in just minutes it was set up via the Shark app, connected to my WiFi and off mapping my house.  We have a lab who sheds terribly so this robot does the work for us.  The only issue is the draft it creates seems to blow the hair forward a lot instead of sucking it right up.  I think if there was a side brush on both sides it may do a better job, but with the matrix clean it seemed to get just about everything in its path. Definitely does better in hardwood and tile, leaves some small items on area rugs as the suction is clearly not as strong as a traditional vacuum.  Will probably still have to take out the old upright here and there but this is still an amazing addition to our cleaning arsenal!