The Acropolis Stay apartment was really good. It greatly exceeded our expectations in every regard. Situated right in the middle of Athens, the apartments are just a two-minute walk from the Acropolis site and the Acropoli metro station, and there are plenty of cafes and restaurants nearby. The front desk staff are friendly and helpful.
We were given room 10 on the top floor. It was very quiet! We were delighted with the apartment. It was a bit small but was super-clean and modern and well-appointed with a small kitchen, a good walk-in shower and a large sink with tasteful lighting and fixtures. The bed was comfortable and there was plenty of storage space. The air conditioning is very effective. Room 10 includes a spacious outdoor terrace but we did not use it due to the heat and the very poor air quality.
If you want good coffee and food, avoid the crowded tourist street around the corner. Instead, head to Coffee Central at Dimitrakopoulou 36 (on the corner of Dimitrakopoulou and Kontouli). For authentic, cheap Greek food, try Sfika near the coffee shop, at Str. Kontouli 15.
Upon checking out from the Acropolis Stay apartment, you can leave luggage at the front desk then pick it up later before heading to the nearby Acropli metro station and going to the airport. (Note that you need to buy a special 9 euros metro ticket for the airport.)
Overall, we recommend the Acropolis Stay apartments and would happily stay there again next time we are in Athens.