I got my Roomba Thursday, charged it overnight, and cleaned my entire 3 floor house Friday with it. You need to charge it between. I does 3 rooms and then charges. I was able to take my shower, clean closets, etc. while it swept. I cleaned under dressers, beds, and the kitchen cabinets which have a ledge over the mopboard. It got hung up between my dishwasher and a register under it. I just take the register out now. It also got tangled in a thin bed skirt that I now pull up on the bed.