Let me just say I'm the kind of person that hardly has a bad thing to say about anyone, but I didn't have a positive experience and it would be unfortunate if someone had to go through what I did.
I intended to stay in this flat for a month as a solo female traveler/writer working on a book. The host welcomed me and showed me around the apartment and said I could reach out any time there was a problem. After he left I noticed that the bathroom sink was broken, which was annoying, because he did not point that out to me and it wasn't reflected in the listing. So it seemed like the host was not being up front about this. The toilet seat was also broken, slid around when you sat on it. I requested that the sink and toilet seat be fixed, and if he could provide a lid for one of the pots. I also asked if there was a reason the wifi was running very slow. In my time there, he did replace the toilet seat and the wifi router, which I appreciated.
The front house door was very sticky and took many frustrating moments standing out on the street trying to get it open. I've lived in old European buildings before and understand that sometimes buildings are finicky - still, it is frustrating when you aren't expecting to have to navigate this problem. The street didn't feel dangerous. However as a Western woman traveling without a man, alone in Instanbul, it felt vulnerable to rely on random men from the street to enter the building I was staying.
In the first few days, the water in the Beyoglu district shut off. I did not know when it would come back and was without water for several hours. All of this and the broken sink was a lot to deal with and left me with a lot of uncertainty. I was hoping for a smooth stay where I could self-cater and work on my book in the apartment without issues. I reached out to Airbnb to see if I had any room to exit the month-long rental, because in a few days there had already been a few issues. As a result, the host then became very rude, hostile and inappropriate over message, telling me, 'This is just how it is in Turkey, if you want perfection maybe you should go to Finland.' Then, he said, 'In Turkey four people rent an apartment this size, and it's just you,' as though because I am traveling alone, I'm not entitled to fairness. So yeah, not a lot of accountability or kindness from the host once there's a problem. Surprising since he's somehow got 'Superhost' status!
TL;DR: not a great choice for a long-term stay as a solo female traveler working from the apartment, or if you're looking for a smooth easy self-catering stay. This has soured my experience dealing with male Airbnb hosts in Turkey for sure. I'd be more trusting of a woman who is empathic, or a property management company that will not take things so personally.
If you're just wanting to party and go out in the neighborhood for a few nights and won't be spending much time in the apartment, it might work for you. The neighborhood and location is great. There were other positive aspects, like having a washer in the unit, and a lot of space.