Yakup's apartment is exactly as described in his listing. The living area is if anything larger and lighter than the photos indicate and it is possible to open windows to get a cross breeze. The kitchen is quite large and equipped with the basics.
As some previous guests have noted, the apartment is located in a steep, cobblestoned part of Istanbul and so depending which direction you are going for the day there is a steep walk to the nearest tram stop. Together with the stairs to the apartment, this could be an issue for less mobile persons. Otherwise, the location is fine. Bakery close by as well as numerous options for groceries and casual dining. Internet was perfect. Yakup's communication was great.
We did get a fair bit of noise from other apartments. Suspect it was people checking in and checking out at odd hours.