I have used the rod cuffs and I am very impressed. They allow your hands to be free to work with your flies, free your catch, or although we hate to admit it, untangle our lines.
I do a lot of fishing in areas that require hiking in and light scrambling over rocks to get into and out of the fishing spot. These areas are not far enough away to completely break down my rig, so the cuffs carry my rig/rigs and free my hands to help with the scrambling and get me there ready to fish.
A great product at an incredible price.