Nikos/Dimitris' place was great. The location was perfect, with many of Athens' big sights in walking distance. It was also close to restaurants and bars and had a central location that was good for taking public transit. There were also great views as advertised; it was great seeing the Acropolis out the window at night, and it was fun spending time on the terrace.
One issue was that when we arrived, the bed was not fully made, and one of the bath towels was hanging in the bathroom, so even though everything looked clean it was unclear whether things really had been cleaned from the previous guests. Dimitris was very quick to respond to messages, however, and we got it sorted out quickly, so it would not stop me from recommending the place; it was a great stay.