I loved my stay here..
The place has everything you need to make your stay comfortable.
The location is a bit more out of the touristic area but I loved this part of Istanbul more than the European side and the metro and bus stops are within a 5 to 10 minute walk. Personally I took a taxi to the ferry to cross the sea. :)
The building also has everything you need. A indoor and outdoor swimming pool, a big terras on 3 different heights, a gym, an outdoor garden/running track and of course the Carrefour. Personally I did go for a operation and had to stay inside for 3 to 4 days and I didn't had any issue with it, I was never bored!
Ajda is a really nice person, although I didn't meet her in person she really made me feel welcome.
When I wanted to ask her something she would respond very fast.
I would definitely recommend this appartement!