In a way it is one big fake, They have reconstructed the earthwork/fencing barrier in places (they know pretty accurately the course of this from the ditch and post traces). However, nobody has yet found a single trace of a building from the period (and it only had a life of ten years anyway, after that they all shifted to Charleston's present location) so the very few buildings you do see are built in the style that researchers imagine they must have looked like.
That said, it is a nice walk in nice grounds, the reconstructed boat in the creek is a delight, and you do learn quite a bit about the first people to live in that neck of the woods.
Be warned seniors. The discount only applies to residents of South Carolina, and the entry is in my opinion somewhat highly priced for what they offer.
My tip to seniors from outside the state Adopt residency for the visit, get a SC zip code for the visit and get in at an honest price (albeit dishonestly).