Stayed as a couple for 4 nights, and had the most enjoyable experience for our first time in Istanbul. Ali was a great host and met us late in the evening, communicating with us throughout which was helpful and reassuring.
Excellent location; 5 minute walk to Galata Tower, 25 mins walk over the Galata Bridge to Sultanahmet (Hagia Sofia); the apartment is surrounded by the best bars and restaurants in the Beyoglu and Karikoy areas; arguably the best in the entire city. In fact, we never needed to use the Metro due to the useful location and walked everywhere comfortably (the Sishane Metro is 2 minute walk).
Apartment is beautifully set out and the exposed brickwork adds a nice finished feature. Full cooking facilities provided should you wish to eat in. Apartment was very clean with good air conditioning which is essential in the summer heat.
Would definitely recommend a stay at Ali's place, and if we're back in Istanbul we would not hesitate to stay here again. An excellent experience.