It gets a LOT of cat hair. I ran it for while today and had to clean the brushes when it was done. Later, I remembered it didn't go down the hall into my bedroom or bathroom so I started it again and decided to let it run until it ran out of juice.. It died in my bedroom on it's second run in there. I hit the start button and it said "clean the brushes!".. (Insert here, they are EASY to clean and the dirt box is easy to get off and dump).. I cleaned it and hit "go" and it started up again.. (Also, notice too, how many cats are in my bedroom and how close they are to Miss Boo!)

Here it is in action and my babies reaction to it... (There are a lot more pets with IRobots on there too!)
http://uk.youtube.com/watch?v=77EAutCYWRk