We had a spacious suite with kitchenette on the 6th floor. Good sized walk in shower with plenty of hot water. We had no issues with noise even though it was on a busy street. The roof-top terrace was lovely with a view to the Acropolis. As we had disembarked from a cruise, we arrived at the hotel before 10 a.m., we were able to leave our bags on the 1st floor where there was a coffee machine and washroom. After going to watch the changing of the guards, we returned just after 12 noon and our room was ready. The two ladies and gentleman at the reception were very friendly and helpful. If breakfast was included, a voucher was provided each morning for the cafe next door, which provided several choices. On our last morning as we were being picked up for the airport at 6 a.m., we were provided with a breakfast box the night before, which we were able to eat before we left. Would have no hesitation about staying at Hotel 21 if we are back in Athens.