Park itself is gorgeous with a large lake and designated swimming area.  Place attracts a lot of people in the summer as its basically in the Pittsburgh suburbs along a major road artery.  There are 2 campgrounds in the park, the hillside one and the one on the lake.  The lakeside one is a glorified trailer park and is packed during the summer with no privacy.  I hiked with my son all the trails in the park and cut through and did not like what I saw.  The hillside one doesn't get near the crowds and it set in the woods.  There are some very secluded sites.