Really great product! My driveway is pretty beat up, so I wasn't expecting much, but the finish is excellent. After pressure washing, I applied two coats with a pump sprayer. The sealant is water-thin, so it sprays evenly and very easily. It does bring out a little discoloration in the cement, because (like I said), it's old and beat up, but it's nothing too bad. It didn't rain here for about three weeks, but when it finally did, the results were exactly as I hoped. The water beads on all the surfaces I treated, and runs down to the gutters, almost as if the surface is glass. It wasn't cheap, but just in the amount of time I'll save not having to power wash every year or two, it's totally worth it.