This apartment has a ton of potential. As the first guest to stay here, there were a few issues that I am confident the host will resolve before the next guest stays here. I feel so confident that it wouldn't feel right to even mention the specific issues. The host is responsive and friendly.
The positives are the location right in the heart of a trendy neighborhood, steps away from some of the coolest restaurants, bars, and tourist attractions like the Galata tower.
The apartment was stylish, with exposed brick walls and nice-looking furniture (more trendy than functional).
Wifi is excellent for working remotely, and the desk and chair were adequately comfortable.
The bed and pillows are comfortable, and the bedroom has blackout curtains so you can sleep in darkness.
The apartment is right beside a Mosque so you will hear the call to prayer often. However, that is the case in much of Istanbul no matter where you stay.
Overall, excellent value for the money.