This product is far superior to others on the market! I used it over a 5 year old sealer that was coming off and spotting on my stamped concrete porches. The finish is awesome, high shine, very water repellant and easy to apply. A thick roller for rough surfaces covered with one coat beautifully, restoring the original color and removed the spots where the old sealer was coming off. I had reservations about the price/value relationship, but no longer. This sealer is worth every penny!