I am quite demanding because I have allergies and little time. Roomba is cute (makes cute noises) but in terms of cleaning it has been disapointing.You should empty it each time you use it or it can make your room dirtier than when it started.It does not save time bacause I spend the same amount of time arranging the room so that it does not get stuck under furniture or in cords.It can be frustrating because she goes over dirt/dust and does not clean it straight away so once I found myself guiding it towards the places it needed to clean most... yes it can drive you nuts.I can imagine plenty of men buying this for their wives because it is a gadget that makes cute noises. I think we ladies are a bit more demanding...