Yeah I was impressed. It isnt magic...but its far more effective than a coat of regular paint. Also, when you caulk something and only apply 1 coat of regular paint, the caulk joint looks shiny through the paint and doesnt look good. This stuff is so thick that it covers caulk with no shine showing through. It fills in minor cracks too. I caulked the bigger cracks and filled the smaller cracks with the paint. I rolled everywhere that I could 1st with the longest nap rollers I could find at lowes...then cut in and back brushed the cracks between the decking boards from where they shrunk after building the deck. It wasn't that bad though...easier than removing all the decking boards and replacing them for sure. I did have to remove all those metal spindles though...2 screws top and 2 at the bottom of each. Those spindles are great though. If they had been wood I would have surely had to replace them after 12 or 13 years. Anyway, hope this helps. This product isnt magic, but it definitely turned out better than i thought it would. I caulked the butt-end joints where 1 board meets another also, it made the deck surface look much more uniform even though the joints were only about 1/8th inch. If it were my house and i was gonna have high traffic on it with people sliding chairs around etc, I would probably roll another coat on the floor. The 2nd coat would take far less product and be more resistant to scratching etc.