Great area--it's just close enough to some expensive campgrounds and a few connecting trails, so it's awesome to camp here for FREE. Pine Creek Road itself is paved, and the camping spots are packed dirt so it's easy to get around even in a FWD. Warning though: if you're nervous about driving on single lane mountain roads, this is not the place for you! Pine Creek Road is several miles long, with some sections that are on sheer cliff edges with very few turn-off spots to allow for passing.
Additional word of warning: the camping spots are not close together and there seemed to be very few of them. Even driving slowly, I counted only 6 or 7 sites total, separated by up to a mile. I saw only 1 other spot with campers, at least 2.5 miles from my site. Some of the sites are fairly large--could easily fit 2 cars and a couple tents--but others seemed to be just large enough to pull off the road and sleep in the car (no tent space). Some spots were tucked back from the road with lots of trees (I barely saw or heard any cars, even though I was probably only ~15ft from the road); but some were barely more than a shoulder with no trees for coverage. I stayed in the same spot two nights in a row, though I packed up during the day because I assumed I'd find another spot down the road. At least in the site I picked, there was very little trash from previous campers.
Suggestion for the permit: make sure you apply for the free permit a few days in advance especially if you plan to go on the weekend. List the place you're going as "Pine Creek dispersed camping," and keep a printed copy in your car. I didn't have trouble with any rangers, but it's better to be safe than fined. Very spotty service (Verizon), which makes navigation and planning difficult if you don't pre-download trail maps.