Vacuum Cleaners Discussions

I am looking for a robot vacuum that I can use for multiple floors of my home. I am thinking of getting the robot to clean one floor, then manually carry the robot to another floor to clean the next floor. I have a few questions: 1) Would manually moving the robot vacuum between floors disrupt the robot's mapping of my home and no-go zones? 2) What sort of robot vacuum keywords/features would I be looking for? 3) Any recommendations for a robot vacuum that can be used for multiple floors of a home?