Works really well, but have to admit the ledges should also be something you can pull yourself up to
I'm not sure it will improve the smoothness of the game.. because even if I add an extra animation the old way would still be there since there are sections where you have to ledge jump from one ledge to another for example.
So adding this sounds like it's probably not worth the time if it's not going to be the only thing being used.
Anyway, good luck with your own game. :)