The appartmant is bigger than it seems on pictures. It was clean and cozy with all amenities and necessities. Konstadinos response rate was on point and housecleaning lady was very friendly.
Neighbourhood towards Omonia seems a bit fishy, but we didn't have any problems, although we avoided those streets at night. Metro station is 1 min away, bust stop is in 20 metres. 5-7 min walk to Omonia avenue, 15 to Syntagma, the center of city.
Overall it is a nice, cozy, budget-friendly appartment, would totally recommend.