I spent two weeks here at three different sites, and while I was ready to get back to civilization (the park is fairly remote), I genuinely had a relaxing time.
The bathrooms/comfort station are clean and fairly new—the only downsides are they’re only open from 7am-5pm to conserve water and it’s a bit of a trek by foot if you’re at one of the far campsites. I also had strong enough reception with T-Mobile to work remotely, and good service through Verizon as well.
Site 25 (Crab): a truly iconic site within a park where nearly every site is a gem. Downside: very little privacy and no shade from the afternoon sun. Upside: Site is level, great sunset views and a quick walk to the pit toilets.
Site 24 (Hercules): Connects to site 25 via a the rock formations, but more private as it’s not directly on the main loop. Again, close to the pit bathroom. There’s a fun and semi private climb up into the rocks to the left of the picnic table that will give you a stellar sunset view. Site is level and protected from the worst of the south/SW winds. I also saw the most wildlife from this site (marmot, roadrunner, jack rabbit, and more). Downside: the site curves rather drastically and is best suited for vans, tent camping, or very small RVs; little shade as the tree that used to offer shade was removed.
Site 30 (Triangulum): hands down, the best site in the park IMO. Lots of shade and privacy as it’s set far back from the main road; it almost feels like you have the park to yourself. Pit toilets are conveniently at the end of the drive. Downside: people climbing through the rocks occasionally end up near your site, but no one ever wandered too far; the windmill does makes some noise but it’s really not too bad; this site has FULL shade, which is ideal unless you run on solar panels. For a few hours a day I had to back my van into the sun, which put it at a fairly severe angle as the drive slopes once you back out of the sweet spot by the picnic table; very little protection from the wind, but there is some.