We christened him "Bob". I know so original. I'm a little disappointed in Bob. Observing its pattern in auto mode (robot mode) seems very inefficient. We keep it on our first floor which is all hardwood. The foyer, kitchen, dining room, and living room form a kind of loop, and Bob's random cleaning patterns, which seem to alternate between spiral, waffle, and wall/corner modes, mean he'll get lost or stuck in one of the rooms and never comes in. other rooms. Even in the room he got lost in, he never seemed to fill the entire floor as we noted the dirt he missed. This also causes it to not be able to find its way back to the charger. It would be nice if you could use the remote control to "teach" her a pattern for each room and then plan each room. Also plan hit or miss. We returned home several times and found Bob only a few feet from his charging station, except that he was facing away from the charger. I'm not sure if it did a full cycle and the battery died at that point, or if it never rode more than a few feet from the charger. It's not Bob's fault, but he gets stuck under some of them too. our furniture. We often leave it running before we leave and when we get home we find it under the top of our kitchen cabinets or under the low seat of our love chair with an error code showing up. I don't know if a more sensitive touch sensor will help with that. It appears that the front bumper needs to be fully depressed to trigger a redirection action from Bob's side. Would I buy this again? Probably no. This is our first robot vacuum but I think with the layout of our house I would go for something that could be a bit more customized in terms of cleaning. It seems that bObsweep will work really well in a nice open floor plan home, but for homes with hallways, doorways, and multiple rooms, I'd try to find something more appropriate.