I stayed at Massimiliano's place for a full month, and could never say enough about it. Massimiliano is a responsive and accommodating host, checking in with me frequently to make sure I was comfortable and felt at home. He was quick to answer any questions I had and made me feel very comfortable in a foreign country - even if only over the internet because he is located in Rome! I found the location of the apartment to be perfect. It is very close to a metro station (which I capitalized on frequently - it is very easy to use), and the grocery store and excellent restaurants are a stone's throw away. The apartment was perfect for my month's stay, Koukaki is a wonderful area to stay in and is minutes away from the Acropolis, and I would certainly stay with Massimiliano again if I return to Athens.