I had a great stay at Nikitas's place. It's small and not fancy, but it has everything you need to cook, bathe, wash clothes, and enjoy a nice meal on the patio. Bed was comfy too, and I loved being able to have the door open and let the light in!
The neighborhood is great. There's a little grocery store, a fresh milk dispensery, and a nice little falafel place all within the block. On Tuesdays there seems to be a big market nearby too. The Fokionis Negri area is an easy walk and loaded with nice cafes and restaurants. I walked all the way to the Acropolis a couple of times!
Nikitas was great about communicating, giving me helpful advice, and even invited me to join him and his wife for lunch, although I wasn't able to make it. Couldn't imagine a better place to stay in this price range.