Greg's place is located very centrally, close to a metro station, and within walking distance of all the main attractions of Athens. We loved the Kolonaki neighbourhood! The apartment was very clean, spacious and had everything we needed. The rooftop terrace has great views over the city. Communication with Greg was easy and he e-mailed us all relevant information, including some great tips on where to eat and what to see. The welcome on arrival was super friendly, and we hope to come back to Athens (and stay with Greg) soon. Highly recommended!