I thought it was an interesting reflection on a mindset, and the parts of working through a problem were cool.

I really didn't like the "interactive" elements, I thought they were gimmicky and didn't service the story. 

I also thought there were real issues with pacing, points of the story were incredibly slow and then we seemed to speed through the payoff at the end, it just didn't feel rewarding.

But a 3.5 rating in my head is a positively ok book, so the negatives didn't deter it enough if that makes sense