Engaging, and more realistic than other golf simulations I have tried over the years - but mediocre graphics.
The WII, by contrast, has very sub-par graphics (I never feel as though I am actually on a real life course, unfortunately), but the mechanics feel right. Different people get different results when they swing the WII "club" for unclear reasons. For example, I almost never hit a hook or slice, but my very athletic son sometimes does.This is as it should be.
As for the complaint that the preview for putting makes it too easy - I just don't allow anyone to use it, and then the putting seems to be exactly as difficult as it should be. Only the iron shots that require less than 100% power are unusually difficult to pull off, as others have said.
If you are looking for something better than the golf in WII Sports, this is it.