The place is definitely recommended for ones who want to stay in Sultanahmed area. There are many good things I can say. Just some from the top of my head: owner is very helpful and responds quickly; the apartment was very clean; view from the window is great; located quite close to main tourists attractions (go to Archeological museum) and you don't need to climb high hills, just some small ones.
From disadvantages I can list only noisy seagulls.