Nicholas is an amazing host! Very quick responder, personable, easygoing and welcoming. Nicholas went above and beyond to make sure my girlfriend and I enjoyed our stay. Outside of hosting us, he also took us many places around the area for very fair prices. He even stayed with us in the central food market for 15minutes after taking us their to make sure that we met up with whom we were supposed to. Also, if you're a U.S. citizen, the embassy is right across the street which added some peace of mind. I would definitely recommend staying with Nicholas during your time in Athens! You will not regret it.