we have stayed at Taksim Apartment as a family of 5 adults and it was exactly fitted for us! the address was easy to find both with taxi or on foot.it's about 15 min to Taksim and very close to the Airport bus shuttles which stops at Point Hotel, Taksim.
the flat was so tidy and clean exactly as the pictures.Ekim's mother was a nice lady giving us the keys,we did never met Ekim during our stay.
It was my 3rd trip to Istanbul,depend to the plan of your trip, if you want to experience the night life and shopping pleasure, I do recommend this place.but if you're more interested to see the historical charm and oriental atmosphere of Istanbul it's better to choose some where in Fatih district as I did on my first and second trips.
thanks Ekim and his mother for every thing!