The apartment is located directly behind Narmanli Han (Caffe Nero, Viyana Kahvesi). All forms of public transportation (Metro M2 line, Tram to Taksim Square and Furnicular Tram to Karakoy) are walking distance. The area is full of life, especially on a weekend. The apartment is on the 4th floor, with a view of Narmanli Han and a bit of Bosphorus Strait.
Being on the 4th floor, the noise from downstairs is not so profound. In fact, we are all tired enough from the day activities that it doesn't bother us at all.
Hasan is an excellent host. Clear check in instructions, and reacts to any questions we have about the apartment.
One drawback: we came in with a lot of luggage and the stairs are quite small. We were having problems heaving these luggage up to the apartment. Hasan was very helpful to send one of his helper to help us carry these downstairs on our checkout day. But if you have problems climbing stairs or have a lot of luggage, please take this into consideration.