Dimitris's place is lovely. It was very clean when we arrived and has everything you need for a comfortable stay in Athens (fridge with water, sink, small oven, hot plate, kettle, cutlery, dishes, laundry drying rack, terrace with a view). It is as pictured. As others have mentioned the metro is directly in front of this apartment meaning it will take you 7 minutes to be in the ancient sites you want to see. There is some traffic noise and we had ear plugs but quickly ditched them when we realized the sounds were not that bad.
Dimitri was always friendly in communication but we didn't always get responses to our questions and when we did they weren't always clear. This could have been due to the language barrier between us. One thing we had tried to clarify was whether we could check in earlier and how to communicate we had arrived if we didn't have the ability to call on our phones. Even though it was a bit of work to figure that out in the end Dimitris allowed us to check in early and another person was waiting outside to help our check in go smoothly. The man was very kind. We were very jet lagged when we arrived and after watching his demonstration on how to unlock the door (with a language barrier) were very happy to go to bed. However I recommend you try the lock yourself before he leaves. The first time we left the apartment we found ourselves stuck in the hall because we couldn't get the door open. A very kind neighbour tried as well and when he had no luck called our hosts who explained it to him and got us in, teaching us the trick.
Everything worked out with Dimitris's place in the end and we were happy to stay there.