The vacuum ran for about 5 minutes before it stalled and became stuck in the middle of the pool. I had to get in the pool to retrieve it because it was stuck. It is supposed to go to the side of the pool when finished, but it never went through a complete cycle, as it ran for about 5 minutes total. I took the top off to clean the filters and then put it back into the pool, and it looked like it was working better, but as soon as I walked away, it stopped moving after only a couple trips across the pool. The bottom of the pool wasn't full of dirt and debris, so I'm not sure what caused it to just stop and not move after only a short time. I would not recommend this vacuum, even seeing all of the good reviews, which is why I opted to purchase this one to begin with.