There was a little bit of a learning curve, especially when i didn’t read the directions...when cutting the straight edge section against wall corner I cut off the side that has the white overlap section. Very important not to as that’s what you use to line up the next set of tiles.  The side with the stove took me less than an hour to do and I LOVE IT!!  I was also concerned if the backing would be sticky enough or if I should use extra glue but I didn’t need to be concerned.