A:Answer The unit memorizes it's path on one level using sensors in three dimensions. If you took it to another level you would have to take the charging station as well. It will "think" it is on the original level and start on the same path, but the sensors "look" at the ceiling and should adjust for the new walls it will see/sense. It has stairs sensors so it won't fall down. Should work fine, just take the charging station to each level before you start the unit. Cleans cat hair and everything really well. Ours has gotten stuck once under a table the first time we ran it. It beeps in distress so if you are home, you can free it. Never has been stuck again since we've had it. Turn lights on in closets so it will clean there. It will stop if the reservoir fills up. Again it will beep to signal that it needs attention. I love that the dirt reservoir components can be washed in the sink. Our cats now ignore it or follow it around. If it needs recharging before it finishes beware that it might start cleaning the rest of your home after it recharges - in the middle of the night. Best tech purchase of the year for us.
