Hey, I didn't get a chance to play the course in Crehange, but I played the course in Strasbourg last weekend and updated the course page, uploaded pictures, and wrote my review. All in all, I would say it's probably not worth the trip unless you're completely disc golf addicted. You can check it out if you want. Have a good trip!
http://www.dgcoursereview.com/course.php?id=5024
http://www.dgcoursereview.com/course.php?id=5024