The first thing to know about this campground, is that there are only 6 camp sites, and it is all first come first serve, and it's free.  I got there on a Thursday to be sure we got a spot, and already 4 of the 6 were taken.  Since there is only 6 sites, it was super quiet all the time.  I'm not sure which site we had, but it was at the end of the road, and set far back in to the forest.  We couldn't see anyone else, and no one could see us.  We loved the privacy!  Castle Lake was a short drive up the road, and it is a very popular lake.  There was tons of people there fishing, hiking, paddling, taking pics....  There are trails to get to Heart Lake, which is a smaller lake, but great views of Mt Shasta from there.  It is about a 20 minute drive to get back to town, so if you needed anything it would be easy to just pop down.  There was reception at the campground about 80% of the time.