First impressions, they're pretty good. I do like the automatic crawling.
And you managed to tackle curved surfaces pretty well, (which is tricky).
One gripe I have is that currently if you stand at the base of the wall, he clings to the wall. He probably shouldn't do that until he's off the ground.
Also if you push yourself against a short wall (the one with the rounded edge), he starts humping it.
Probably be a good idea to leave half size walls out of the game
But all in all, it's pretty good so far. Not too floaty, and the yvelocity is maintained once you hit the ceiling which is nice. You might want to make a better transition from falling by switching the animation when yvelocity is a higher value (the animations spaz when I slide down the hill).
Also it's god to see you developing again. Welcome back bro.