Loki won't jump up on the couch or the bed, he will jump off the couch, and sometimes the bed though (bed a good 2.5-3' up so jumping up is not expected anyway). To get him on the couch, should he feel the need, he waits to be lifted.
He runs, jumps and everything else to catch balls at light speed, but never jumps on the couch (kind of nice) he also won't do stairs with more than 2 steps, but where we live (10th floor) we fortunately don't need to deal with stairs on a day to day basis. The other problem is a lot of the outdoor stairs are open steel, he likes the idea of those even less.