The vacuuming function works decently, but sometimes it completely skips entire rooms. When the vacuum goes to charge, it doesn’t start the job back once it had finished charging.  The battery life does last a good while though.  The mopping function is really great if you can get it to work. Usually on my first two tries of getting it to mop, it’ll empty out two whole tanks of cleaning solution and make a mess of soapy water on the floor. This is so frustrating. The noise level is decently quiet and it doesn’t scare my cats.