we had heard nothing but glowing reviews of Oak so decided to try it out recently and it was a disaster.
we arrived a full 20 minutes early to enjoy a cocktail at the bar. over an hour later - and not a single proactive update from the staff - we were still waiting. other people who arrived after us (presumably friends of the owner judging from the coziness) were seated before us, so I decided to let the maitre d' know that WE knew what was going on.
with no promises that our table was even close, we let the restaurant know that we were leaving. at this point, get this - the maitre d' actually said to us, "Please come back some time and tell me more about how to run a restaurant."
we've never been treated this poorly in such a supposedly upscale dining establishment. if you're craving a steak in Charleston, we'd recommend Outback before Oak. at least they'd be friendly at Outback.