Let me start off by saying that this is a wonderful place and I will absolutely keep it in mind for my next visit to Istanbul. It is bright, airy, spacious and well located. It also has an amazing kitchen for cooking and a huge dining area.
We did run into a few issues here, but luckily the communication we experienced was not only quick, but they were very committed to fixing any of the issues we ran into.
Here are the issues we experienced:
All three AC units were not working on arrival. Crazy to see it from one or two during the end if summer, but no, we had all 3 units turn on but not blow cold air. The internet was also not working the day we arrived. Our host did get both of these issues completely fixed within 24 hours though.
Once the AC was working, specifically in the dining room, there was a horrible smell for a few days. We suspect a dead animal near the outside part of the unit. This issue did subside, but appeared again a couple of weeks later into our one month stay.
There is also a leak in the bathroom from the apartment upstairs. No one could fix it before we left. It was minor, but it did appear to knock out a few of the lights on our second to last day.
The final issue worth mentioning is the location of the mosque loudspeaker literally across the street. When the prayers begin, it's hard to hear yourself speak. This occurs around 5 or 6 times a day. We noticed it a lot since we work from home and have to be on calls and video chats.
Two minor nitpicks.... it is a very hilly area, and the TV is there just so it can be added to the listing.
Having said that, you are within minutes of Galata tower, Karakoy, the tram, and the metro, not to mention numerous buses.
There are also tons of small markets, fruit stands, restaurants and coffee shops everywhere.
Lastly this place has so much character. Even though we didn't see anything we also kept joking it might be haunted. At night it's just one of those places, but I say that in the best way possible.
This spot should definitely be on your consideration list. Enjoy!