This is a very nice, large apartment in a GREAT location--walking distance to the National Gardens, National Art Gallery and other great museums like the Byzantine Museum and the War Museum.
The apartment has the feel of a nice hotel--not a charming private home. It is very clean and the furniture and appliances are new. It is on the second floor; the building has an elevator, which is important for guests with mobility restrictions.
Sofia was very nice through our stay: she welcomed us and stayed in touch via WhatsApp. We asked for a minor repair (the trash can in the kitchen) and they responded promptly. We had a two-week stay and they changed all the bed and bathroom linens after the first week.
There are many restaurants in the area; many of them are just ok, but there is an excellent (and expensive) Michelin-rated restaurant--Cookoovaya--right outside the building.
We definitely recommend this place and will be staying there again if available.