I would definitely recommend staying at Taso's apartment. He was a great host, and the apartment was very cute and suited the needs of me and my friend very well. It is in a very convenient location for exploring Athens by foot or by Metro, and is near some great restaurants and a grocery store. Tasos was great about communicating and offering suggestions both before we had arrived and the evening that we met to get the keys and an orientation to the apartment. He even sent an email checking in and asking how things were going the next day!