Our stay in Miltos apartment was great, it's a beautifully decorated studio in the middle of everything, we could go walking and be in less than 10 minutes to Acropolis and many other places. It's also very easy to go to and from the airport.
Miltos was helpful and flexible, letting us check in quite late, and also storing our bags after our checkout time so we could enjoy the city some hours more. When we first met him he gave us many tips of places to go to.