Several of the tiles arrived damaged, but they did fairly quickly replace them. Again though, some of the tiles were not in great condition with the replacements. On Wayfair, they said they could be used on any flat surface, but when they arrived they did not recommend use on drywall/paint. I bought them to put on the painted drywall in my kitchen. So far they seem okay. I used a dry paint roller to smooth them out because they did bubble initially. They seem to being staying flat now. I'm curious to see how they hold up. For the price and effort to install, I would buy them again. Overall I am happy with the product, but there were some concerns.