I have used them and they get very high marks (duh)....
For golf, I only use these for temps that are under 40 degrees. For the most part, that's a small percentage of my rounds. I personally prefer to use only glove, but in the cold use the cart mitts between shots.
One thing I do use my WinterSof gloves for is driving. They fit snuggly, not bulky, and are perfect for keeping my hands warm while behind the wheel. I know FJ can't market to that use, but I can tell you they are the most comfortable glove ever for that use.