I liked the idea of the rope mechanics, but it seemed very glitch and buggy. It wasn't hard to understand, but it felt very off and hard to predict. I think if that one mechanic was worked on a bit, the game would be a lot better.
Edit: To be more specific, sometimes I attach to nothing, but sometimes I attach to the rail. It's hard to tell which one I will do. I'm never really sure where my "Anchor point" will be.