This game is considered perfection and godly.
I doubt anyone would call Psychonauts perfect, most people are well aware of its flaws, but still love it for its quirkiness. I think those who like it don't praise it for its mechanics and controls but despite of it,* mostly because of the graphic style and its originality in characters, humor, story, dialogue. Contrast is a bit similar in that regard, as it has somewhat flawed and frustrating gameplay but an original and exciting setting and story to explore.
(* There are spots in Psychonauts that I absolutely loathed and that took me forever to beat. The fact that I still kept on trying is a testament to how awesome and engaging I found the rest of the game; I didn't want to concede these particular shitty sequences the power to make me miss out on all the funny stuff that was yet to come.)