I've had this for almost a year. It never cleans any room in the same pattern or anywhere near clean. I've tried retraining the maps and placing the base in many different locations to no avail. Sent it in to have it serviced and was told nothing was wrong. If you could look at my "cleaning reports" you'd think I have invisible walls that change positions every day. Also why have bags in the station other than to have a constant way of getting more money out of you.