It is great to have a robotic vacuum in your home, and Samsung makes a really good one.  I leave it on my second floor most of the time, and let it work its way through 4 bedrooms, two baths and a laundry room.  It does take some time for it to complete (with multiple stops to empty and/or recharge), but it beats doing it yourself.  Smartthings app is nice for control, and to be able to locate the machine at any given time while it is operating - especially helpful when it gets stuck on a cord or sock.

Overall, a great product (only regret is that I did not upgrade to the AI+ model.