Great place, beautifully designed and spacious.
The kitchen has all the tools you need, the rooms were pretty and each had a TV and its own shower and toilet.
The showers were great (no issues with hot water).
We were a group of 5 and it was more than enough, the apartment can fit 3 couples easily.
The location is pretty good, about 10 minute walk to the metro station and about 20-30 minute walk to the main attractions.
The streets were very quiet during our stay and there were nice coffee shops and grocery stores close by (about 5 minute walk).
Also no noise from the other apartments!
The building also has a gym and a play room for kids, super useful if needed.
I fully recommend this apartment if you plan to go to Athens, it was really one of the better ones I've ever been in :)