Man, it's crazy to me how terrible the official walkthrough is compared to the fan made one. DPC doesn't tell us when many actions have consquences like adding cheating variables. And in many cases, he doesn't flag actions as having any consequences until the walkthrough gets to the results of those actions, like how letting in the Preps decreases Dik's happiness in the party planning mini-game. It's a surprisingly unhelpful walkthrough.
I only got two things out of this one over the fan made one: I learned that you can over-feed the fish and I snagged a special render that I previously missed. It was my fault for missing it, but the pictures in the official guide are helpful, as is the fact that it tells you which render gets unlocked. But that's about the only thing it has going for it.