The game of kings and we are fresh out of them. Well, except for Don... And Larry.
Considering the past experience that Rockstar has with games like Golf we should expect no less than (and we certainly received) their best effort!
Game play is very simple - the Left Trigger will show you the hole, the Right Trigger will show you where your shot will land optimally with the club you have selected.

To swing you pull down on the Left Joystick and then pop it back up when the meter is in the yellow zone. You can adjust the power with the Right Joystick.
With respect to the actual results of a swing bear in mind that a perfect swing is going to carry a bit farther than the indicated landing area, so you should always take that into account.
Each hole has a set Par (the number of swings it should take you) and you should try to make that -- or less -- your target.
When playing in the rain you should expect the ball to react oddly every now and then but otherwise once you get the hang of it you should find this a fun and challenging mini-game to play, particularly with your mates!