Haven't been for a few years, although it's only 12 miles away. Can't comment on camping facilities but circuit is nicely compact, easy to get around to various vantage points. I always liked to be on the inner circuit at cascades very soon after start a good view of a sweeping left and away down a straight then across the track you can see over to hill top and fast into knickerbrook.
Plenty of village pubs local and a very scenic area. Sure you'll love it..