Toni's place is great. The location is excellent with lots of great restaurants, bars, coffee shops and local market on Friday where you can stock up with fresh fruits, vegetables, olives, nuts, and much more. Transport links from the apartment are excellent with the bus stop just a minute walk from the door. The apartment was clean, bright, quiet and tastefully decorated. The little extras like the soap, shampoo were very good quality and the nespresso machine and coffee pods were a welcome surprise!
Definitely recommend Toni's as an excellent base from which to visit all of Athens.