Samsung vacuum is excellent. The engineers were brilliant programming the computer chip is great because how it knows if you move it, machine remembers and will finish and go back to the exact spot it was moved. It talks and let’s you know if a problem,  if it’s stuck it cuts itself off, says it needs emptying the bend, battery low returns to the station. The vacuum goes over my whole house just love it. I wished this was engineered years ago. Oh this is a plus it never bumps or scratches my furniture just goes up with in 1-2 inches and turns around. Awesome vacuum. If you sweep a pile dirt it will see it and go over to remove dirt. Emptying station is so great when it finishes it empties in the station bag without you having to do anything.