This site is nice due to its close proximity to Gatlinburg but you also know what to expect when you pick a campsite near to a large touristy town. Low key and small sites but being in this area of the smokeys is worth it because of the amazing hiking.
Twin Creeks is a lot like most other Smoky Mountain camping spots, so you kinda know what to expect. Hot in the summer, awesome in fall and spring, and really cold in winter, so pick your season according to your tastes. TC is pretty close to Gatlinburg, so if you want camping, but still want to be pretty close to civilization for eating and shopping, this one might be the one for you.
We met up with friends at their site here and we were very pleased that we had not stayed here :/ It was clean, well maintained, and a great price for the distance from some awesome attractions. But it was clearly geared towards RVs and would have been a totally 'open' experience with close neighbors. Definitely would be a decent place to stay in an RV though.
This is one of the cheaper campgrounds in the Gatlinburg area. They are always crowded. The sites are very small and there is no privacy. I would not recommend tent camping here at all. There are some small dorm style cabins available for rent and places to put RVs. Those options may be a bit more fun but tent camping here was not relaxing.