We really enjoyed our stay at Kostis and Liz's apartment. Everything was tended to and well-communicated, and the check-in and check-out process was very smooth thanks to Liz's prompt responses! Location-wise, it is really in the heart of Plaka and easily accessible by metro or bus. Most attractions (e.g. the Acropolis and the Temple of Zeus) could be walked on foot from the apartment, so that saved us a lot of transport costs. Amenities in the apartment were well-provided and we loved the variety of coffee (from instant powder to filter coffee) and tea options! Needless to say, bakeries and cafes are super close by so you can get your coffee or breakfast fix from these places too. Definitely worth visiting and staying when you're at Athens!