My wife tore her ACL over Xmas.
She doesn't really climb but does ski.
She was dead set on an operation until her consultant said that he himself tore his ACL and never had the op, just wears a knee brace for skiing. He said it's her choice, and even though he loves doing operations, he'd suggest seeing how it goes with physio as there's no urgency to have the op right now.
4 months down the line she's getting a lot stronger and has the occasional wobble, but it's largely positive.