We picked AVA hotel primarily for its excellent location. The hotel is located in Plaka - a nice and safe area so you enjoy walking around with peace of mind (I was told that Athens is not safe). Because of its central location, we could walk to all the attractions on foot. The room was clean, modern, beautiful and spacious with a normal double bed, sofa (can be converted to a sofa bed), kitchen (well-sized with basic kitchenware) - perfect for 3 guests occupancy. Our bathroom was small with no bathtub (i.e. only shower) but newly refurbished and spotless clean. Free wifi internet was stable and high speed. Staff was outstanding - polite, informative and always happy to help. Somehow we got a surprise champagne on the last night of our stay! How nice and thoughtful they were! One drawback is that the hotel has no fitness room or pool. I am not a gym or pool user but it would be nice if I could have somewhere to take shower in after a long hot sightseeing day after checkout (my request for late checkout was rejected). Overall, very pleasant stay. I'll stay at AVA again.
Remark: Not all taxi go to the airport. To avoid hassle, book your airport transfer from the hotel, which is reasonable-priced.