Andreas' place in Exarcheia is a great base from which to explore Athens. It is a 10 minute walk from the Omonia metro stop, which makes it very convenient. There are plenty of great places to eat and drink around the apartment, and the neighborhood is lively while also feeling very safe. The apartment itself is large and comfortable and Andreas provided plenty of amenities (kitchen supplies, blankets and towels, etc.). The wi-fi worked well enough for me to work remotely and reliably connect to a U.S.-based computer.
Andreas was a wonderful host. He was very communicative and flexible. Our plane landed significantly later than expected, but Andreas was there to meet us and help us settle in. He provided a wealth of information about and recommendations for things to do in the city. He also checked in with us several times during our week-long stay. I'd highly recommend this place