Seems a lot cheaper than iRobot! It's LOTS noisy from day one as the brush heads seem a bit longer, like the lawn mower in my house. She cleaned worse at first, but not much worse. Then everything went wrong. After a couple of weeks the side brush was completely bent and falling apart, the bottom brushes were badly worn and suddenly they weren't picking up 90% of the visible dirt. The glue holding the brush from the outside to the inner rollers has come off. , so he drove, did not rotate theโฆ