There's 19 Yellowpost sites (I believe) and I stayed in site #16; it was the best one in my opinion. There was some perfect tree's for hanging a hammock and escaping the sun. The sites are decent sized too, and they all have a picnic table and a fire pit (which is nice).
My biggest complaint was how close it was to the road, it was hard to get the whole secluded feeling. And I was also a little bummed to see no water in the creek, but I;m learning that's more common than not.
The road was pretty well maintained, a car without 4WD can handle it easily.
Overall, it was a decent site and definitely has it time and place - but if you're looking for a backcountry feel with beautiful awe-inspiring views, I would say find a different spot. But if you're looking for a chill place to hang out with friends in the forest, maybe play some horseshoes and have a fire - this is a perfect spot. :)