Have just come back from Athens. We were a group of 6 adults and three children and we very comfortably accommodated in Toni's. There were 4 double beds, plus cribs for the babies. Everything was spotlessly clean and tidy. The apartment is modern and very well equipped, with everything a traveller needs (iron, washing machine, kettle, kitchen, towels, soaps, shampoos, internet connection, TV, air-conditioning), and very close to the most important sights of Athens.
The service was excellent, respond time was very quick and even though we arrived very late at night, we were welcomed by one of Toni's friends who patiently waited for us to arrive just after midnight.
We are definitely going back.