Definitely disagree with Dave242 on Oshtemo. This course has many 'just right' grassy fairways in dense woods, a unique contribution to the disc golf world. From the long tees, this course separates the experts from the neophytes. From the short tees (also cement), it is a seriously fun intermediate level course. Hole 10 from the short tee is one of my favorite holes in all of disc golf.
However, this course has a way of attracting groups of seven golfers at a time who have never played before-and won't let you pass. Play in the morning or during the week or you will get a negative bias of this course.