I waited until the new counter tops were installed So do the Smart Tile installation and it does take some prep work insure a good installation. After thorough degreasing of the painted surface I also wiped down walls with alcohol. Getting the seems lined up level is critical for a long run. Measure twice, cut once, rule applies. All in all it took some time but when I think about renting a wet saw, cutting and trimming, and grouting too. This was way better for me and at least two people said the results are amazing.