The appartement is very well located, near a supermarket and 10min by foot from the Acropolis. The neighbourhood is safe and nice, with a lot of cafés and restaurants. The bus station is also very near, and the metro station is 10min by foot.
The appartement is nice and has the utilities needed for a short and long term stay. It is pretty sunny, there's a lot of light coming in. The Internet is good to work, a bit weak for HD video calls, but it still works fine.
I really liked the appartement, the communication with the host was great. He helped me deal with a noisy situation (there was some works). The only negative point is that, as most of accommodations in Athens, there's no isolation for noise, and people are not always very mindful about noise. It was mainly calm, but if you have a light sleep, it can be difficult.