Crash 1: infuriating and the most frustrating platformer I've ever played. The hitbox is bullshit and most levels are just not fun at all.
Crash 2: waaaaay better. an actual fun game with some good levels.
Crash 3: the best one by far with the most creative levels and way less infuriating shit.
I love 3D platformers but these Crash games really tested me. Platforming is sometimes so bad that it's impossible to actually see how long or short your jump will need to be. The camera angles are here to drive you insane. Annoying controls, inconsistent hitboxes and interactions are everywhere.
I would just recommend to maybe stay away from the first game if you want to stay sane.