We (a couple) stayed here for one month and really liked it. The location of the flat is great, there are plenty of cafes, bars and restaurants closeby, both metro and tram are near, and you can easily walk to city centre, Acropolis area and Filopappou hill.
The flat is spacious and clean. We both work remotely, and the internet connection was very good. The check-in was easy and the communication was excellent. We visited during late fall and there was central heating that operated during certain hours in the evening, and for the rest of the time we used the AC units when needed.