Camped 3 days over Memorial Day.  Crowded but expected.  We stayed in green section.  Very shaded. Small to medium sites.  Have a 23 ft Grey Wolf and had no trouble managing parking.  Some 5th wheel and Class C had a harder time in this section.   The purple is considered the prime but I did not see paying the extra.  Yes it is by the pool and playground. But many sites have no trees for shade.   There is lots to do in Stone Mtn.  Good shuttle service so you don’t have to drive, park and walk.  Check website first to see what things you are interested in to determine price as most have a cost.  The laser show is free and a must do.  I am disappointed though as over the years they have cut back on the historical components but still enjoyable.