We have spent 3 nights in Theodore's apartment and we simply loved it.
The flat is fully equipped with everything you could need for a short stay, even with e.g. shampoo or TV, Hi-Fi.
The apartment has a central location. Really safe surrounding. Subway, tram just 1-2 minutes on foot. All famous attractions are within a few metro stations (pls note that you may have to change at Syntagma station). Beside the metro also the tram stops there which is quite practical if you would like to go to the beach or to Pireus.
What we have liked the most is the balcon. It is simply the perfect location for your breakfast or just resting after a hard day.
We fully recommend this apartment! It will be our Nr. 1 choice again in Athens!