We enjoyed our stay in this nice appartement. The appartement is also fine for three persons because there are 2 bedrooms. The location is great: in the middle of everything in Kadiköy: shops, supermarket, 10 minutes walk from the metro to the airport Sabiha Gokcen (takes about an hour), 10 minutes from the Bosporus, where you can take the ferrys to Karaköy, Eminünö or Besiktas . The appartement has a great view. The communication with the very kind landlord was perfect. His reaction was very fast for example as we had no water!! He called the company and let us know, when we had water again (after a few hours!). Although is is a bussy street, we slept was very well in fine beds on the 7th floor!
We had 14 days a lovely vacation.