GORGEOUS view, really a 5 star view with a large campsite. We had 4 Jeeps and 12 people and there was plenty of space left. At night we saw a jackrabbit and heard a coyote which was very cool; in the morning, we watched a wild horse walk in the river.
Why it gets knocked a star:
It took us about an hour and a half to drive out there from the Castolon Visitor Center, which almost felt not worth it. The roads were boring for those who want the off road experience as it was mostly flat unpaved road, but I suppose that's nice for anyone who doesn't enjoy a lot of challenges when driving. We only stayed for one night, but if you stay for more and want to leave camp, you have to pack up your things because it's so close to the border (which seems silly to me but the rangers said things get stolen so, sure).
There's another site down the road but no one else was out there besides us which was awesome, except for when we heard people talking and got paranoid - turned out it was just from the ranches across the way.