I had Sundek of Washington do some work on my driveway, this was my first time using them and everything is good now but it took quite a while to get things right. The work they finished most recently was the 3rd time they had to come back to re-do some of the work they did because of some issues causing the stamped concrete to bubble up and it didn't look good. They did not charge me for the 2 times after the original time but it did take a while for them to work out a time with me for the follow-up jobs that were required. They fully explained to me what they think has been happening and said it won't happen again, it all looks good now but I hope it holds up.