We had a very good time in the apartment. It is not just equipped with everything one could need. It's also in a lovely and lively neighborhood, where one can experience both the modern Athens (Bars, Cafes, Restaurants) but also the traditional parts with people who live here for many years.
Additionally everything is either in walking or subway distance. So if you're looking for a modern, high level accommodation for one or two - Mary's and Carlos' Apartment is the best choice.