We stayed 4 nights and thoroughly enjoyed our time at Zehra's apartment. The location is hard to beat. Everything is within walking distance. She took care of everything from the airport transfers to the porter that helped bring our luggage to the third floor walk-up. The only challenge was sharing one toilet with 3 other family members, though there were 2 sinks at different locations. We'll definitely be staying with Zehra on our next trip to Istanbul.