This is a big campground with lots of folks and crowded.  The last time I was there I let another group share my site so they had a place to stay.  If you have a choice of sites - choose well as some of the sites are real close to each other.  Can be crowded and noisy. I like the sites where you park your car and then walk to the site.  More work but you can get some alone time as well.

That being said it is a great campsite to stage a Yosemite trip.  Good site to check out the Yosemite Valley, the high country at Tuolume Meadows and then Hetch Hetchy.  Do not forget or miss Hetch Hetchy.  You can hike where you walk thru a waterfall there.