Promising Space
20 ft pop-up camper · Group trip · TLDR: Good access to Hocking Hills. Likely best for off-road folks and/or small to medium RVers. Great price and ability to hold larger crowds may balance a few rough edges. .
Full review: Overall we enjoyed our time at Outlook Haven, with more pros than cons, so a mixed bag. I think for certain folks it would be great (larger groups, ATC users).
On the plus side, the hosts were kind and responsive. One of our party ended up switching from campervan to tent and the hosts let us spread out to the other site that had a more comfortable tenting experience. That was a super gift for us. The sites have good shade and a wide variety of birds . The electrical, sewer, and water are all convenient and the shared portapotty is close but not too close by.
On the negative side, they are still developing the areas so there are minor issues such the rocks aren't yet smooth and compacted, the picnic table needs sanding on the edges, and the water spigot sprayed into the ground causing mud on the edge of the campsite. I would imagine, had we been in an RV, those might not have been problems at all. And we were able to work around all of them as well. RVs though might have some trouble getting up the hill to the campsite.
There is heavy 4x4/ATC options around the area, including some you can get to straight from the site. That wasn't our thing, but if its yours, I imagine this would be a great location!