The location of the apartment is just perfect, with plenty of places of interest from a walking distance. Lots of hip and traditional bars and restaurants, craft and design shops, museums and public transport are nearby, while the street where the apartment is located is quiet, so you won't be bothered by noise.
The apartment itself if cozy and in good condition, with everything you need to make yourself comfortable. It has enough light, and it has a little terrace.
The extra services, such as internet or airport transfers worked perfectly.
If I was back in Istanbul, I would love to book this apartment again.