If you like his video, you'll likely like the book too.
I didn't like one chapter, which is generally his I HATE MY SELFIE film. Probably, because I've already seen it as a film...
Other than that, there was this one really depressing chapter, which wasn't really satisfactory for me, as I started reading the book while I was somewhat depressed, and trying to cheer myself up, but other than those two chapters, I've found it quite enjoyable.
Lol, also today I've started reading In Real Life by Joey Graceffa and currently reached to Chapter 8; Shane's book is kinda better.