Perfect Airbnb process. Check in was straightforward, smooth, and quick; Spiros let me back in within 1 hour when I accidentally locked myself out, so communication is extremely quick. Interior is great: nice bathroom, 2 air conditioners, comfortable bed, multiple TVs, and a great big kitchen with enough supplies to cook your own food (which I did a few times). Wash machine also double as a dryer and works great.
The house itself is in a semi-shady area with lots of graffiti; but, there doesn't appear to be any criminal activity. Nearby is a great deli, many clubs, and tons of florally decorated bars; despite this, it's far enough away that no loud music can be heard. Monastaraki is a 5 minute walk away, and the Thissio train station is 3 blocks away.