Bill & John's place is gorgeous. Spotless, brand new, high-end fixtures. Everything works perfectly, every balcony door, every faucet, every light, it's a full-on luxury apartment with no exceptions.
My family of 6 stayed here and we had a fantastic time, just loved the place. Cooked dinner there one night, mostly ate out in the surrounding neighborhoods. Can't beat the location - it's amazing. View of the Temple of Zeus and St George's. Tip - wake up in time for sunrise and head up to the roof to get some incredible shots of the Temple and hill.
Bill and John were friendly, accommodating, and very supportive. I asked for good locations to buy SIM cards and they offered to go buy them for us ahead of time! (They couldn't without ID, it turned out.) Lots of maps in the place, and they talked us through a bunch of good neighborhood spots when we arrived.
Really a perfect AirBNB experience without a single qualification.