This apartment was amazing. First, it was exactly as shown in the photo, it had everything specified. Secondly, it was in the Balat area, close to buses and streetcars, and a 6-8 minute walk to restaurants and stores. Wi-Fi is good enough, the washing machine works, refrigerator, there is a heater, so it is always warm and there is hot water. Everything is there, in short.
I would also like to say that Soner was very responsive and was always in touch if there were any domestic issues.
All in all, a perfect apartment if you are coming to Istanbul for a long time.