Great Airbnb! Eyp is one of the most accommodating and proactive hosts I've ever met. The apartment is well thought out. There are fans in each room, a small balcony to hang laundry, laundry soap is available, and they even had some water and snacks available on our arrival. Nice touches :) The hosts were easy to contact during our stay.
We reserved the sauna/hamam to use the morning before we left, it was nice!
The location is great, this is a great neighbourhood with plenty of food, drink & ambiance nearby. You can also walk to the major tourist sites like the Grand Bazaar and Hagia Sofia in about 30-40 mins, and it's a nice walk. The neighbourhood has lots of hills so be prepared to get fit!
I really recommend this Airbnb (or probably any with these hosts) for a stay in Istanbul. It was a pleasure and I look forward to coming back!