The Hercules residence is a newly completed (Spring 2019), totally rehabbed building where all units are used specifically for AirBnB rentals. This makes it feel more like a all suite hotel or executive housing. The front door and each apartment door have keypad locks so no need to worry about picking up keys. (This also turned out to be great when different people wanted to come and go at different times - no worry about who has the keys when). There is also a brand new elevator (unusual!) which was great for bringing all our bags up and down.
The apartment is tastefully decorated (Ikea style) with all new appliances, kitchen supplies, etc. Everything is new and very clean. There is a very large, wraparound porch with cafe tables that is great for relaxing with coffee in the morning or drinks in the evening.
Two of the three bedrooms have their own bathrooms, with a third bathroom in the hallway. Having 3 bathrooms with a 3 bedroom apartment is very unusual and very nice for a family or group all trying to get ready at the same time. The bathrooms have very nice tile and glass shower stalls. All bedrooms have individual AC units, as does the main living area, so the apartment was always comfortable for everyone. (One of the AC units was malfunctioning during 2 of our 3 nights, but Esmeralda had a technician come out the next day to fix it). All the windows/sliding doors are double paned and shut out all the outside noise.
There are fantastic amenities in the basement: a very large gym with modern equipment, a free laundry room with all new washers and detergent provided, a business center area with printer, and a really cool kids play room with a multilevel climbing structure that would be amazing for families with younger kids who wake up too early. I've never seen an Airbnb with that level of amenities.
The location is in a residential neighborhood with kids walking to school in the morning, families out on their balconies, etc. There are a couple restaurants, a bakery, butcher shop, and two supermarkets within a few blocks - but this is not a tourist area with tons of restaurants lining the street. It is about a 5 minute walk to the Gazi neighborhood with tons of restaurants, bars, clubs, and galleries. It's about 15-20 min walk to the Acropolis and other sites around it.
Esmeralda was our "property hostess" and was very responsive before and during our stay. Since that appears to be her full time role, she was able to provide almost 24hr responsiveness. We would definitely stay at one of these apartments again and recommend it highly for visiting families or groups who want a clean, modern, nicely decorated space with hotel-like amenities in a residential neighborhood rather than a typical hotel experience.