I am incredibly disappointed with our experience at Gangnam Ristorante Coreano, which completely…read moreruined what should have been a special high school graduation celebration for my son.The moment we walked in, the staff was entirely unwelcoming. They immediately cornered us to ask if we had a reservation, yet we watched them let other customers pass through the door right after us without asking them the same question. The waitresses seemed completely bored and visibly bothered whenever we asked for service. In fact, when we asked for assistance, the waitress seemed irritated. It was incredibly disrespectful and unprofessional.Unfortunately, the food did not make up for the toxic attitude. The beef was incredibly tough, and the rest of the meal lacked flavor--likely because the hostile atmosphere ruined any chance of enjoying it. On a hot evening, the only thing welcoming about this place was the air conditioner. The air was cold, and the service was even colder.I will never go back to this establishment, not even for a glass of water. I strongly recommend looking elsewhere if you want a warm, respectful, and pleasant dining experience in Florence.