I love my Roomba. I press a button and off it goes all by itself. That means I can be on the QB or take a shower or bake a cake! This thing is the greatest. I have a dog and I can't get over the very fine dust it picks up and that fine dust might be dog dander, I'm not sure. You can set it to do the vacuuming in the middle of the night but I don't do that. It cleans under furniture (beds) as well as the middle of a floor. And when it thinks its done, it will make a circle to see if its missed any dust and will go back out and get it. When its finished, it docks itself and we're done!