We stayed here for a few nights before leaving for the island of Skopelos (which was beautiful). The hotel is very nice as are the rooms. It's what you would expect a Hilton to be in a big city downtown area--nice with rooms that are a little smaller than normal US hotel rooms. We stayed on the side of the hotel facing the Acropolis which is lit up at night and quite stunning. Do yourself a favor and get to the rooftop early enough to get a table. The view is fantastic. The food is quite good at the restaurant, and they stay up very late to accommodate their guests. Athens Hilton is a full service hotel that feels like a small hotel as you interact with the staff. The room was very clean with a modern design. The pool and gym were large, clean and well kept. The rooftop restaurant and bar is a must visit for the evening view of Athens and the Acropolis.