We have stayed on the Pedernal loop multiple times and it has always been great.   The sites are well laid out, with plenty of room between neighbors.  Access to the campground is restricted (closed 10pm-6am), so it is always quiet, with just those camping driving around.  Rangers and sheriff patrolled a few times.  Camp hosts were very friendly and helpful.   All the grounds are clean and well maintained, trash cans at every site.  The electrical pillar for our site was new and worked perfectly.  Water also worked with no issues.  Shower house is clean and well maintained.  Access to a few trails, but water access requires a bit of a drive.  Amazing views.