Black & Decker RV501 Zoombot Robotic Cleaner

The zoombot is pretty fun to watch, and the cats enjoy watching it too. It can't go up or down steps, so if you have one room at a different level than another room, then you have to block it off so the zoombot stays in the right room (doesn't crash off the step for example). It also tends to get stuck on a very low pile carpet, so if you have one in the room, you have to move it before vacuuming. It works best on plain floors such as wood or linoleum for example. I wouldn't recommend it for carpeting. It does actually work good for its size and price and picks up dust and fine cat hairs surprisingly well. You have to empty the dirt receptable after each use because it is so small that it gets filled up that fast. The noise level is fairly quiet as well, which is a pleasant bonus, because most vaccums are rather noisy.