These look great. Easy to install i did not need extra glue behind the tile itself.
But i also scrubbed the wall with a heavy degreaser then lightly sanded the area followed by another scrub. I messed up a piece and pulled it off it did remove the paint and paper off the drywall so they do stick well.
I did take the advice of another reviewer and paint cear locktite caulking around the perimeter of where the tiles meet since they did peal up after a few days but they were stuck to the tiles themselves and not to the wall. Also run a bead around the outer edges under the cabinets and countertop.
Great product overall everyone thinks their glass.