Have eaten there at least 4 times. Once was loud, when the doors were open to the boardwalk (and we were seated near one of those open doors), but the other times, I can't say we noticed it being overly loud. I think the boardwalk contributed most of the noise that evening.
The openess of the design does seem to allow kitchen noise to carry quite well.
It's not exactly a quiet spot for conversation by any means, but really loud, I wouldn't say that.