If you've owned a dog, then owning a roomba is a similar experience.Without precautions it can get into rooms you don't want it to venture into, and eat things you'd rather it didn't! Before letting it loose in a room, you have to pick up everything off the floor, and you often have to retrieve things from its mouth!If there is a trailing mobile phone cable around-roomba'll have it and you'll eventually hear a mournful tune as he confesses he's caught up! For all us lazy people out there, roomba will do a perfectly good job. If you're obsessive, then it doesn't get into every corner. If you're obsessive about hoovering, the chance are you'll be doing it yourself anyway on a daily basis. We owned ours a month before it broke and had it fixed through the warranty. This is a common problem which is discussed on many roomba websites. The brushes get tangled up and stop turning. Also the plastic arms on the rotating brush have a nasty habit of garotting themselves and coming off. Replacements can be easily bought, but it is still a bit annoying.We programmed ours to start up every morning. When it broke we boxed it all up again, taped it all up, only to find it continued to come on! We couldn't work out how to over-ride the programme, so tend to just switch it on manually now. Despite the breakdown 4 weeks exactly after buying it, we love our roomba- and nothing is better than sitting reading the paper, drinking coffee and saying "leave me in peace, I'm doing the vacuuming!"