I have never played it but have walked it (many years ago) my thoughts at the time as a mid teens handicapper were that if I were to play there to remember to have plenty of balls in the bag. I was a big left to right player at the time.
If you use a buggy on the Nicklaus note that you can't leave the path and getting to the fairway (especially the far side) can often be difficult and time consuming.
The Nicklaus is as hard as nails. You need to be straight and long off the tee, and be happy with around 30 Stableford points. If you play a full medal round make sure that you take plenty of balls. The other course is a lot more used friendly and maintained to the same standard as the Nicklaus. Well worth a visit if you have never been there before.