Our reservations made by our hotel were honored immediately and we were sat without any wait! A very pleasant surprise as compared to many restaurants that are this busy. No need for a sport coat, but wouldn't go in sandals and a t-shirt either.
It seemed to be a place where nice designer jeans/designer shoes and a 'going out' shirt worked perfectly.
What to wear is always a question for us.you can wear anything from casual to business. We went on a Saturday night and the buzz, atmosphere was young with high energy. The restaurant is on top of a cool building which appears to be a revitalized area of Cape Town. The food is served tapas style which is exactly how my wife and I enjoy to eat. Wow is the one word to describe this place.