Amazing!
This was an incredible campground. We went in the off season, so we were literally alone for a week and a half. No ranger, no campers, just us and the lake and the deer. (and a couple of occasional cattle!)
The views are breathtaking and the park is surrounded by BLM land for plenty of hiking opportunities. The road in features a hot spring and a one-lane tunnel. An added bonus is that the road in features numerous easy to access dispersed campsites along the river on BLM land.
A couple of things to keep in mind: This campground is roughly 40 miles from the nearest medical facilities and there is NO cell phone reception.