The place is perfectly located (10 min walk to the Hagia Sophia, Blue Mosque, Cistern and the palace). It is easy to reach by tram (10 minutes walk from the stop) and the neighborhood is lovely. The place is exactly as shown in the pictures. It is very clean and from the terrace you can enjoy a nice view. I totally recommend it.
Although we didn't meet Kamil in person, he was very nice and helpful during the preparation of our trip.