At the recommendation of a friend, I purchased the Roomba and cannot believe the way it cleans! I used it for the first time after my cleaning person had been at the house. I was shocked at the dust and cat hair that the Roomba picked up that my regular vacuum did not. It is very important to clean out the dust and dirt after each use. It hasn't gotten stuck under any furniture or tangled in any cords. I do wish the battery lasted a little longer for each use, though. I had planned to program the Roomba to clean in the middle of the night, but it is so much fun to watch that I haven't done that yet.