Came to 5DN with a large group. We booked it well in advance for a Christmas party. They sandwiched 15 of use into a space for 10 in the front room. The tables were old and uneven, the chairs were all different heights and sizes, some almost like kids' chairs. The floor was uneven, the whole thing felt just thrown together at the last minute.
The room also had two other tables even though we were told it was going to be a private room. The temperature of the room was about 12 degrees centigrade and this was exasperated by the door being opened every time another party entered the restaurant, which everyone did since we were inside the front room.
The wait staff were stressed. One waiter tried to do a rude funny schtick all night but it just came off rude. The service was sparse and poor. The food took about two hours to come and there were plenty of avoidable mistakes.
The prices are extreme, as high as anything in the city. I've eaten cheaper at North 44 and they charged a nasty premium since we were a large party (would have been fine if the service was good but it was pretty terrible). We all felt like they were doing us a favour by letting us come to their hip restaurant. Perhaps they were understaffed but we felt like we were being punished for something.
So on to the food. It was pretty good all things considered. The meat choices were well prepared/cooked and spiced. The vegetable were not over cooked. There were some nice surprises as well. But not everything worked, a couple of dishes were mediocre at best and one person's dinner was down-right bad. When this was brought to the waiters attention he whisked it away without a work of apology and didn't come back for 15 minutes.
In the end, we all laughed, drank a fair bit, and all came to conclusion that we would never come back.
5DN would have gotten one star if not for the food.