Christina's place was just as it is pictured on the site. I came for a 2.5 week work trip to Athens and it was exactly what I needed and fantastic location. There is no gym in the building, but I went for morning jogs around the Acropolis (entrance is just blocks from the apartment) and around the national gardens. There are tons of delicious cafes and bars in the neighborhood. Christina was very responsive to anything I needed and she even runs a yoga studio in the same building where there are weekly classes you can join for 15 Euro. A very comfortable stay- I highly recommend it.