If I make it back to Athens I can't think of a place I'd rather stay. The view from the rooftop is even better than you see in the photos. We got there later in the evening and when we got up to the roof and saw the Acropolis all lit up it was breathtaking.

The actual apartment is fairly small as is very well shown in the listing pictures. I'm 6'3" and the shower was a pretty tight fit; I definitely had to duck to use it. I'd say my height is probably right about at the upper limit of comfortable use, though no where else in the apartment was my height an issue (if it's two people over 6' the sofa-bed could be a little rough since one half has the armrests that would prevent one of the people from stretching out). As another reviewer mentioned during the daytime it can get very hot if you're not right underneath the AC (fortunately, that's where the bed is). This isn't really much of an issue though as we were never really in the apartment during the day, we were out exploring Athens and this location is super ideal to do that. Everything's within walking distance and if there's something else further out, there's a metro station about a block away. That metro station also makes transfer from the airport absurdly easy, you just pop on the metro from the airport (~14 Euros for a two person ticket) and get off at the stop right next to the place.

Dmitry's response time was always super fast and he was waiting for us outside the apartment and took us upstairs, showed us around and gave us a welcome shot of a homemade alcohol I've forgotten the name of. We never ended up using the bikes but they seemed nice (everything's so close to the place we never could come up with a reason to). My wife also wanted me to mention the towels and sheets smelled really clean :)

Highly recommend this place for your stay in Athens!