We stayed at the Grande Bretagne after a cruise in April 2012. The Hotel is a beautiful classic in a perfect location overlooking Syntagma Square. Most areas of Athens that are of interest to tourists are in walking distance or short cab ride. The interior is indicative of its position as the premier hotel in Athens for over a hundred years. The lobby is grandly furnished, as are the rooms. The staff could not have been more welcoming and helpful.
Our room - #706- I believe a deluxe room, while not extremely large, was beautifully furnished with a balcony with an astounding view. The bathroom was elegant.
The top floor has an open air restaurant with the same fantastic view of Athens and a swimming pool.