Hasan's place is a nice cozy studio in a great part of the city. His place was exceptionally clean, easy to find, and close to many cool spots around the City like Taksim/Istiklal, the French Street, and the Marina at Cihangir Steps. The kitchen is a bit barebones but if cooking at home is not a concern (which it shouldn't be in Istanbul) this place is awesome. However one thing to note is that the listing mentions it is a Self Check-in, it is not. Hasan was accommodating in checking me at 1 AM (as he lives close by the premises.)