The flat is perfectly located, right in the heart of Sultanahmet, next to the souvenir market, in a 5 minute walking distance from the main sights - Haia Sophia Mosque, Blue Mosque in 15 minutes walk to Topkapi Palace and Basilica Cistern (unfortunately, it was closed for restoration).
The apartment is quite small, but enough for 3 (or even 4) people to stay comfortably. The kitchen is equipped with everything necessary for cooking breakfast or a quick dinner, there's a big fridge and an a/c (great for a hot summer). The flat is divided into two separate rooms, which is convenient for a family with a child, or three friends like us)
The host provides towels, soap for shower, drinking water. Next to the flat there's a supermarket working from early morning till late at night, which is very convenient. Ali was of great help and recommended the best route to explore the main sights. We spent an amazing week in Istanbul and appreciate the host's help!