pros: very clean apartment, host was there on time (even early) for our check in, spacious, modern/trendy design, amazing location to walk to sights.
cons: there was a lot of noise late in the evening (Greeks like to stay up late, the trash collection came around 23:30, and the street next is somewhat busy) and early in the mornings there was a lot of construction going on in a different floor of the building. Hopefully, this was just a rare occurrence. Also, not really a negative..but make sure you note that you cannot flush toilet paper in Greece, you must throw it all away in a trash bin in the bathroom! this is true for any place in Athens you stay. (maybe not a new hotel, not sure)
Overall, the experience was great. We would definitely come back here again. We stayed for 4 nights. The best part was the nice bathroom and the proximity to the sites. Closest thing to walk to was the Acropolis (appx 5 minutes) and the Acropolis Museum (less than 5 minutes). This is not a very touristy spot, so no worries on that. Many great options of restaurants within 10 minutes walk (many within a couple blocks). Even to get to Syntagma square and Psyrri it was only a 15-20 min walk. If you don't want to walk there is the Acropoli metro station which is 5 minutes walk from the apartment. The host was helpful with restaurant information and answered any questions we had. I would recommend this apartment to any couple or single looking to have a great stay in Athens.
Thanks Toni!