We had a very nice stay at Regina’s apartment. It was cozy but just enough space for our party of two families including two small children. Regina was a super responsive host and added a lot of thoughtful touches such as sending extra supplies for our children. All in all we were quite comfortable.
A note on the location: as others have mentioned it is up a hill. That in and of itself is not a big deal except the sidewalks are narrow and uneven and in some areas you must walk up stairs. This makes it difficult to get in and out of the neighborhood on foot with children who need strollers. Fortunately, taxis were easy to call in just a few minutes using the Beat app. Otherwise, it is an excellent location for sightseeing in Athens.