After SAMSUNG VR10M7010UW, Yes, the quality of cleaning has decreased, but not critical. (The turbo brush is smaller and the suction power) Roborok is lighter, so the battery does not land on 97kV so 60% of the battery remains. Samsung charged after cleaning in one direction, roborok does it continuously. After gnusmas, roborok must have. Price quality! Pros below: Everything is quick and easy to understand. Bought pressed works. Finds base always. Cons: Can't find original filters. Everywhere a fake under an orig.