Ok, what type of controls would you rather want (this is not meant to sound rude by the way, I'm just curious)?
The keys itself are not the problem. It's the jump speed and the window to jump from branches that are hard to hit.
I've seen you've already replied wondering about the jump mechanics. The jump happens too fast. And the window where the player can use branches is too small.
Thank you very much for the feedback! I will make sure to add wall sliding in my upcoming games, and I hope you're there to play them!