We had a fantastic stay in Spiros and Daphne's place. A few things to share below.
* Location: the apartment is in a residential part of Kolonaki which means quiet nights for sleeping. Yet, the place is only a few minutes walk to a nice bakery, supermarket, and the Friday farmers market. It's also very close to luxury shopping options, if that's your thing. :) You will be 15-20 min walk to center of the city where the old part of town is.
* Hosts: All our interactions were with Spiros. He is hands down one of the best Airbnb hosts we've interacted with in years. :) He is very welcoming and hospitable, on-time, and always there for you. I would go as far as saying that he pampered us. The recommendations he gave for the places to eat and visit were fantastic. We especially appreciated the human connection which is many times lost in Airbnb reservations. Renting this apartment wasn't just a business for Spiros. He wanted to make sure we have an overall nice stay in Athens, which we greatly appreciated. :)
* Apartment: The apartment is what you see in the photos. It's a very nice apartment, tastefully decorated. There are quite a number of books on the shelves, we actually ended up reading a few of them. :) The apartment is clean. You have enough control over the temperature to make the place warm in colder days. One comment about the bed: it's a metal frame bed and it does make some noises when you move on it. We didn't mind this. The shower water pressure was great.
We highly recommend Spiros & Daphne's place.