This was my third stay at Christina's place in the last 2 months.
Just like the first two, I have only nice things to say.
Extremely clean, very quiet, good location for metro, bus and taxi transportation choices.
Some excellent food in the neighborhood too, most notably, the Hellas Restaurant, about a 5' walk away. Short hours, only from 11am to 6pm but highly recommend it for a meal.
Enjoy!