Despite the JnR agility and splendid mobility tools (or maybe because they introduce new challenges), I find climbing to be much more tedious and annoying than it was in CR. There's several reasons.

-Rope segments like to clip through small material protrusions. Maneuvering around these is something ropes should be good for.
-If the rope does go around a ledge like it should, my clonk often snaps into hangling as soon as I touch the ledge, when I'm meaning to stay on the rope.
-Jumping off a wall is inconsistent. Sometimes I jump horizontally, sometimes I fall. Maybe this is just ignorance on my part though - what do you need to press to perform a horizontal wall jump?
-Jumping off round ledges is awkward because walking sometimes abruptly turns into scaling down the ledge. Not sure how this could be improved, though.

I played Treasure Hunt yesterday and spent about half the time trying to climb the same ledges again and again. Maybe I should just use good old loam more.