Shark IQ 2-in-1 Robot worked like I thought it would.  It is a bigger robot than I expected. You can connect to the app but the robot will work without doing that.  The robot was quite noisy on my wooden floors but when it went into the kitchen it was quieter.  I felt it cleaned rather well.  I really liked when the battery was running low the robot went back to the charging station.  It was really fun to watch it do the work.