I haven't been out there in a while, but I remember Crystal Falls as being a great course. Lot's of elevation changes. I heard they leveled the fairways on a few holes since I have been out there which would seem to make the course much more fair. The 2nd hole is a cool hole. I would definitely recommend checking it out. Make a day of it and play 36 and check out Avery Ranch as well. Another great course.
Shadow Glen is very tough. I've played it three times and each time it kicks my butt. Tricky greens, lots of dog legs, unusual design, great opening hole, and somewhat long. It always seems to be in great shape and is the toughest course I've played in the area.