I've played a couple of courses in France and agree: The watering is - well you have to see it to believe it. Yikes. Best course I ever played was also the worst maintained: Coore's Golf du Medoc.
The courses in Denmark, where I'm at, are mostly more low-key than US courses and not too many are that well designed (unnecessary blind shots, boring greens, lack of interesting bunkering). Some courses have way too much unkept rough, but that has decreased in recent years.
Unless you play around Copenhagen, the prices are very reasonable, and you wouldn't have a problem hooking up with locals for a good round of relaxed golf. Slow play is common when the weather is nice - too many members, or in the case of Copenhagen: Too many golfers in general. Like Germany, we lack good land for good new courses. We have some nice coastal areas with dunes, but that land is completely off limits for golf courses.
I've heard many good things about the courses in Southern Sweden. Nice layouts, nice surroundings, good conditions.
Danish golfers: Just like anywhere else, they complain about the others being too slow and take too long on and around the greens. They do play by the rules though. I'd just wish that more would play match play.