We stayed here for 4 nights in Sept when the temps were close to triple digits.
As a campground, it’s actually pretty nice. Many (but not all) of the sites have water and electrical hookups, and they’re spaced far enough apart that it doesn’t feel like a parking lot, even though there’s no real dividers to speak of. Since the sites are on a hill, they all have views of the reservoir. There are clean bathrooms, but no showers.
The reservoir and the campsite sit in a basin of red rock cliffs, so it gets very hot during the day — a few degrees warmer than Hurricane — and stays hot well into the night. As long as you’re prepared for this and have a/c and floaties for the lake, it’s fine.