We are a group of 7 people, and stayed 4 days (May) in Istanbul.
Everything was perfect!
Evin is a warm hearted person, who seems to love to make her guests happy. The communication is fast and easy.
We took the airport shuttle that Evin organised for us, the easiest way for a big group to get to the flat (and back to the airport).
The appartment is idealy located (Galata Tower, restaurants, shopping, transports) , it is well equipped, comfortable and quiet.
Thank you Evin!