I was scared to see how this stuff would cut. It required the use of a utility knife with multiple new blades. I went through around 22 blades for the whole job.
It took very precise measuring and the use of a square to cut out the individual panels. I had to cut, paste and hang one at a time due to the fact that the book case was over 60 years old and you can bet your ass it wasn't even close to being square.
The cuts came out better than I would've imagined, but still weren't close to being perfectly straight.