Stayed at the Athens Hilton for 6 nights on one of the executive floors. Rooms were fine - nothing special. An extra blanket would have been nice.
Breakfast buffet in executive lounge was great...evening snacks were not so great.
Also, the staff is too busy to clear tables or replenish items - like coffeecups and cutlery and the food in the morning.
Coffee is wonderful - if you have a coffee cup! And it would have been nice to be able to bring a cup of good coffee back to your room - not interested in the instant stuff that is available in the room.
But it's a great location with the blue line metro two blocks away. The rooftop lounge is wonderful with a view of the acropolis.