Put new wood on my deck 2 years ago but life got in the way and never sealed it. K8ds staryed getting splinters. Spent 8 hours sanding it the other day but still had rough spots. And was burning through the sandpaper. Purchased this and it has been smooth sailing. Takes off all of the rough and leaves me a nice smooth finish. I did have a few jam ups, but it was my fault. Had a few boards I had to make multiple passes with, and forgot to raise the blades back up before starting a new board. It was just trying to take too big of a bite. Will definitely get my money worth put of this machine.