the Appartment was very modern, beautiful and clean. The check in was quite easy and flexible and the host even welcomed us personally to show everything the house. The communication was perfect and Dimitris was always there for us. the location is very central. It's only 2 minutes away from the metro by foot and there are lots of bars and restaurants around.
However, it's Gazi, the party area of Athens, so it can be loud at night. Especially during the weekend it's really loud from 8pm until 5am. So please consider it, if you insist on a good rest at night. The bed was not very comfortable since you can feel the springs and it was uneven.
Additionally,it's located on the 1st floor so always close the door and the balcony doors closely. it's really easy for burglar to break in via the windows. It's very Common in Athens and other big cities.
PS: there are lots of mini markets and supermarkets around.