Mopsie is used on a weekly basis to clean all non-carpeted floors in a 3 bedroom house. I'm pleased with the ability of the device's sensors to detect carpeting and shear off. Occasionally, she gets stuck under low clearance locations. The onboard reservoir last a surprisingly long time. Training or mapping works well. Adding new locations (rooms) is fairly easy to do. The training seems to operate on the "tell me 3 times" principle. So it takes at least 3 runs to map a location. Overall, I'm pretty happy with the Mop 'bot.