I would recommend this apartment for anybody wanting to check out Istanbul, especially young people! Kadıköy has an amazing variety of restaurants, cafés and bars. it is also directly at the seaside, which I appreciated. you can cross to the European side ofIstabul quite easily, to if you so desire.
The apartment itself was a little hard to find but once found was really convenient to live in. There is always somebody at the reception to help you with whatever you need 24/7.
The cleanliness wasn't quite as good as we expected since our blankets had some weird stains on it and the toilet flush didn't work often times. I am sure though that this was just an exception and we probably would have gotten cleaner stuff, if we asked for it directly. The hosts were really nice!