When you go to Charleston, you tend to spend a ton on food, and 75% of the time it's worth it. Nigel's was not expensive in the least, and was AMAZING. Best hush puppies and collards I've ever had. You can't really miss with the food, so try it all. They also do live music on Wednesdays (I think).
The best part, the service. All of the wait staff is about as friendly as can be, as is the owner Nigel.
Check this place out, especially if you're doing day trips from Charleston as it's off of a few main highways.