We didn't stay at this campground, but we walked over and checked it out while disperse-camping up the road.
This campground has 6 sites, and is $20/night and $10 additional for each extra vehicle. There is a $10/day fee for day use.
5 campsites are reservable through recreation.gov or by calling 1-877-444-6777, and 1 site is first come first served.
There is zero ATT, Verizon, or T-Mobile signal at this campground, but the Los Padres forest area as a whole is very spotty - you can go from zero to good reception for all 3 carriers as you move from area to area.
No water or any amenities here other than vault toilets. Fire is allowed in the fire rings at each site, no fire permit required here (but fire permits are required elsewhere in the National Forest). There were a couple of garbage cans by the toilets. Sites have 2 picnic tables, a shade structure, fire ring, and a grill.
There is no signage directing you to the campground, so download the map ahead of time if you need directions. From 58 you take Red Hill Rd/Forest Rte 29S15 and turn left at the dead end at Fernandez Rd. Keep going straight until you see the campground on your right. There is a road turning right at the cattle guard, but keep going straight.
Campground is fairly large with wide open spaces to turn around, so bigger rigs should be fine. The roads coming in from Hwy 58 -- Red Hill Rd and Fernandez Rd -- are ok, they are compacted dirt / DG with some washboarding and a few ruts. There are people who live in this area and travel these roads in regular sedans, so it's definitely doable for most vehicles, but I'd imagine large class A's would have a tough time.