I was able to stain my deck in just a portion of the time it took me do it with a brush, plus I was able to do it standing up instead of on my knees! The stain went on evenly, better than with a brush because it was faster and I didn't get the dry edge overlap. I was able to get to the edges fairly close, (it was good enough for me). It does not get in between the decking boards, but I knew that from looking at the design. Great idea!