Good spot for specific activities
First, let me be clear that the only reason I selected "maybe" for the question of whether I'd recommend the site is strictly because it's a very good site for some activities, but depending on what kind of camping you had in mind, it *might* not be ideal.
The host was responsive and friendly, and I had my half face cord of wood waiting for me, along with the rest of the site being very tidy and ready for me. The directions were clear. The outhouse was immaculate.
The fire pit area is great. The host put time into making it large, comfortable, and safe. There's a small pond behind the fire pit, in case you need extra water to extinguish your campfire. I saw a couple of wee frogs in it. :) Do be mindful of bugs.
The site definitely lives up to both the retreat and the dark sky claims; it's fairly secluded and isolated, and the sky was incredibly dark at night. I saw a lot more stars than I see back in the suburbs. It would be a great spot for stargazing and astrophotography. Also a great spot if you wanted to do a solitary activity like a meditation retreat.
If you go in peak bug season, employ a layered defence.
So, why did I select "maybe"? Basically because the usable area in the site is limited. There is a gravel roundabout driveway, the fire pit area, and a couple of flat spots. You don't have immediate access to trails/etc., so while it's a good place to set up camp, you might need to go for a walk or drive for activities.