This was our first time to Istanbul and first time using Airbnb, actually!

The duplex apartment is located near Sultanahmet area, which is within 5-10 minutes walking distance from all the main cultural spots in Istanbul. There is a bedroom and a living room with a sofa on the second floor and a sofa on the first floor (so total of 3 beds). All 3 are quite comfortable for sleeping.
The hosts are absolutely great as well. They met us when we arrived on our taxi, waiting outside and helped walk to the apartment, explained how everything works and even gave us a short walk around the area to get us oriented.
If you have a large group (5-6 people), this place is great!
And everything in the apartment worked (hot water, wifi internet, heating, curtains, etc.)!

We were very happy with our choice of the place, with our wonderful hosts and our overall experience in the city! Highly recommended!