The apartment is extremely comfortable and super clean. Plenty of amenities and fun extra treats included as well. The air-conditioning was a welcome addition as Istanbul was quite hot and humid during our stay. The location is great, you are a 5 minute walk from a thoroughfare, Istiklal, the bustling Galata area, or the more laid back but sheik neighborhood of Cihangir. That said, the apartment is quiet (the Azaan isn't super loud, so you can get a good night's rest).
We were transferring from another airbnb and our check-in/check-out timings didn't match but Missy accommodated our needs without any hassle. Whenever we had questions or requests she responded almost immediately. She obviously knows what she's doing, this is a very comfortable lodging option in the city, highly recommended.