Stelios was great! He met us at the Monastiraki metro station and walked us to the apt; on the way he recommended a few places we should visit and also a few restaurants we should try. The apt. was great as well, centrally located, no need to take any public transportation as most places to visit in Athens were within a 10-15 min walk max. Also conveniently located if you are planning to take the metro to the airport.