Game is nice. It's a great idea converting a variation of Stickman Golf to the C64. Courses unfortunately are not really smooth. They sometimes are somewhat tiring, you might end up trying back and forth forever. Maybe this is the reason why you can't play the game with more than 2 players, which would be nice, but otherwise might just take too long. The presentation and artwork however is great, so maybe this just needs a little practice to get into it. I really appreciate that people are doing games like this one, nowadays!
Note that the game won't start if you have two drives connected (which is the case if you use an C128D or SX64 with your 1541-U, even if you switch the internal drive to #9).
Unfortunately I did not find any contact information for anyone who is responsible for this game or merchandise.