I have used it for about 3 months so far. The first unit that comes with it had a charging problem, so I had to request for repair service right after I receive it. It was a total disappointment at that time, and I just wanted to get a refund and get a new one because I felt like I bought a refurbished unit for a brand new unit price. However, after using it for awhile, I really like this vacuum that has a powerful suction power, great aesthetic look, and easy to empty the dust bin. Samsung customer service definitely need to improve much.