I'm pretty easy to please, as long as procgen fits within the overall vibe of the game.
My only hang-up is when there aren't enough unique/modular enough nodes and I can recognize walking through the same room several times in one dungeon. If that happens, I'm not playing your game for more than 20 hours no matter how much fun it is.
Procgen should increase novelty. If you're just rearranging the order of parts A, B, and C, that's bad.