Derek I.
Yelp
Who likes hiking? Or walking through a random golf course? It takes about 20-30 minutes to get from the parking area to the entrance of the castle. But once you started on the path, you don't want to turn around. You've invested too much time to turn around and walk away (the drive, the parking, the golf course walk, the walk on the path around the entire castle). You have to visit at that point.
It wasn't terribly priced, about £4 per person. It has some nice views of the North Sea and the surrounding countryside, and the remains aren't in terrible shape. Though the walk to and from is probably as long if not longer than the walk in the castle grounds itself.
Nice place, but I don't think I would go out of my way again to visit.