I had an ugly popcorn ceiling with various   colors of stray wall paint along the edges from previous owners. These tiles transformed the whole room. Delivery was fast. The tiles were easy to paint using a foam roller. They are light which made adhering them to the ceiling a breeze. I did end up needing much more adhesive than I originally thought. Its best to put small dollops around the edge and a few in the center. To prevent neck pain, I also recommend painting the tiles prior to adhering to the ceiling. Touch ups can be done afterward. These are a great buy. Much less expensive than getting the popcorn removed. It is definitely an easy DIY project especially if you have help. I  highly recommend these tiles.