The host was extremely patient with us and went the extra-mile to make us feel comfortable. We arrived before the check-in time and the host kindly proposed us to store our luggage for a coupe hours so that we could start visiting the neighborhood before the apartment was ready. At the end of the stay, our host also organized a cab drive to the airport (he was waiting at 6 AM outside with us to ensure everything would go smoothly- and for no extra charge!).
The place is impeccably clean and neat. The apartment is built on the ancient walls of Constantinople and disposes of one balcony with a view on the Blue Mosque, and a large terrace with superb view of the sea of Marmara, which is very relaxing and a great spot to watch sunrise or sunset. The apartment is located on a quiet street, about 10 minutes away (by foot) from the Blue Mosque, Haga Sofia and Hippodrome. For very tall people: be mindful of the relatively low ceiling in the Kitchen (I am Im80 and had no problem however).
The bed sheets and beds were very clean and neat, so were the set of towels we were given.
I would definitely recommend this place for anyone looking for a place to stay in the old city. There is a little bit of walking (5-10 min) to get to the main attractions but this is not an inconvenient at all as the street is located in a very charming neighborhood for you to discover.