Jana was a gracious and communicative host, and we enjoyed our stay. We tent camped at Big Oak #10 for two nights, between Pedernales State Park and Hamilton Pool visits. The site was great, with a fire pit, picnic table, trees for our hammocks, and level, grassy spot to pitch our tent. Just a few things to share in full transparency.
This is right off 290, with Austin sprawl encroaching, so you will hear the highway and see McMansions, storage facilities and other stuff from the property. If you camp at Big Oak, during the day there will be lots of noise from the paintball range next door. The outdoor shower is cold and refreshing (no hot water). While walking around, and especially playing disc golf, be ready to come in contact with cow and donkey pies.
Make sure to check the Hays County burn ban in advance. We didn't come prepared with propane, so our food and firewood went to waste. If you need a place to camp in Dripping Springs, Longhorn Getaway is a great option.