We stayed for three nights in this hotel during September. It is a wonderful stately old hotel opened in 1878. It is situated in one corner of the main Syntagma Square just across the road from the Parliament building. Our room, although the cheapest on offer, was a good size and very comfortable. Service throughout the hotel was excellent and the hotel was ideally positioned for exploring Athens.
Other than the excellent breakfasts, we had two meals in the hotel. On our first evening there was a large protest in the square so the hotel was completely closed up with metal shutters down over all the doors and windows. (After manoeuvring through the crowds we managed to get back into the hotel via a small door in the adjacent hotel and then round the back area and through the kitchen/housekeeping quarter.) We had not booked a meal but they fitted us in willingly and we had a very enjoyable, though expensive, meal in the restaurant, overlooking the square and the protest! The views of the Acropolis from the restaurant are magnificent and the Parthenon was beautifully illuminated at night. It was worth the money just for these views alone. Even if you do not wish to pay for an expensive meal it would be worth coming for just a drink (the bar is joined onto the restaurant) and to gaze at the Parthenon.
Our other meal was an excellent and reasonable priced meal by the pool. The pool is on the same level as the restaurant and has equally stunning view of the Acropolis and the Parliament building.
I would definitely recommend this hotel if you want a few days of luxury in the centre of Athens. I have reviewed our sightseeing in Athens separately.