Rob is on the slower end and doesn't have great disjoints, so you have the advantage spacing him out. You want to hold center stage and pressure him towards the ledge so he doesn't have room to run back gyro. If he jumps to try and escape corner pressure he's vulnerable to juggling, just be on the ball so you don't get caught with FF nair. Don't bother trying to edgeguard when you get him offstage, just ledge trap and hold stage positioning. Trying to corner Rob is your win condition. He can press advantage and edgeguard you better than you can do to him, so you need to do your best to keep him trapped and scared to leave the corner, and push your juggling situations as far as you can.