Fly fisherman like gadgets and tools and this was one of the more interesting ones I have purchased recently. It takes a few fish to get used to, but once you have it down, it is simple to get fish off the line without handling them. This is important for 2 main reasons. It is better for the fish as you dont need to handle them and, in the winter, its friggen cold putting your hands in the water! Ive used this on a bunch of 10-14 inch fish and it works fine, im questioning how well it'll work on a 16-20 inch fish, but we'll see in the future. (I hope) I also debarb all my hooks. I am not sure how this would work on a barbed hook.