The apartment is well-located, walking distance to Acropolis and Acropolis Museum, the Metro and other ruins. The apartment is nicely restored and decorated minimally. The living room has a sofa bed which is surprisingly comfortable and good for two people. The kitchen is small and basic that has the utensils that you need to make a simple meal. It has washer and dryer combo which is a big plus but I found out on our last night that it takes a very long time to barely dry your clothes. So we flew to Satorini with a bagful of wet clothes and had gone to the laundromat and spent 6€ to get them dried. The washroom is small, very nice and modern. The bedroom is quite spacious with a lots of storage space. It has a comfortable queen size bed.
Konstantinos and his team is always available and made sure that our stay going well.
I highly recommend Konstantinos place.