Not impressed. Everyone that works here is too cool for school and the burger was very underwhelming. I was very disappointed with my experience. Being a native Atlantan, I couldn't care less about this whole Penguin feud thing (see other hate filled reviews by locals). But I thoroughly enjoyed the Penguin and was told by EVERYONE that the Diamond was way better. Now I'm pretty sure that it was politics talking. Maybe this place is just banking on the local support and not taking anytime to ensure the quality of their food & service. Due to the controversy and publicity, people are going to pile in in droves no matter how many reviews like this are written, I just hope they don't have the expectations I did. If you are visiting Charlotte and have to choose just one diner, The Penguin would be your best choice. Don't concern yourself with all the local drama nonsense, just eat a delicious burger.