Highly recommend.
Rio's place is the perfect Athens accommodation. So close to everything but in a quiet neighbourhood so you can get away from the crowds too. Rio and his wife were so helpful for our visit, booking taxis and recommending where to go. Accommodation is slightly dark (which is actually a good thing as keeps the house cool) and the bed a little hard (all the beds in Greece are) but none of that matters as we spent so little time there given we were out and about so much and warm out when we got home!
Would stay again in an instant.