This robot vacuum/mop has been a game changer for our house!  Since it works on its own, it frees up our time to do other things.  The vacuum leaves the floor spotless.  It covers every area of the floor several times.  It even blasts air into corners to get them really clean.  We have multiple levels in our house but the robot senses the edges really well and has never fallen off.  Additionally, unlike other robot vacuums we've had, this one doesn't seem to get stuck under furniture and on rug edges.  Initially, I was scared to use the mop on our laminate floors but the mop leaves the floor barely wet.  The mop feature works well and removes sticky spots I didn't think it could.  I would highly recommend this robot vacuum/mop!