I bought one years ago and loved it. After about 10 years the buttons stopped working but mind you my kids were pretty rough with it. But decided to get a robot vacuum for my next one and was so upset. It was terrible. So now went back to this one. Will never bug another vacuume again. In the 10 years I had my old one it always vacuumed as the same as the day I got it. It never lost suction.