These tiles are soooo gorgeous and easy to work with! they look really authentic and transformed my kitchen. They did take some specs of paint off the drywall as i adjusted them during install, but not enough to make me not want to use them. the calculator over estimated my need, good thing i trusted my gut, measured myself and did my own math, then added 5 extras for back up. I ended up having exactly what i needed, and was only left with half of a sheet. love this look, will be purchasing again for my bathroom!