We had a very pleasant stay at Akif's flat. He was always avaliable to communicate over WhatsApp. Akif was nice to meet us at 2 o clock at night, showed the flat and answered all the questions we had about the city.
The flat has everything we needed, it can easily fit 5-6 people.
The main great thing about the flat is the wonderful terrace on the roof of the building. It has the best view of the city and we spend a fantastic evening with wine and music there, even though it was not very warm in November.
Location is also good, Galata is a very nice place near to the old town across the brifge and the main high treet (İstiklal).
Overall a great city and a great place to stay!