The apartments is spacy and bright. Though it's located in the middle of historical part of the city, it's a part of a modern neiborhood. The apt has a gas boiler so you can control water and air temperature.
The transportation is easy to any point of Istanbul, a lot of buses in 5 minute walk and a metro station in 15 min walk.
There's a nice farmers' market next to the building every Monday where you can buy fresh vegs and fruits, fish, cheese and everything else for cheap.
The flat has enough utensils and kitchenware for a family, but lacks a kettle, so we had to buy our own. There's no washing machine there so please be ready for a handwash (there are washing bowls and a drying rack outside the kitchen window).
The host Faycal speaks good english and helped us a lot with a short excursion around the neiborhood and with moving to another flat.