Good option for the location and price but a few things to keep in mind:
1. Apartments arent very well maintained. The shower in ours was malfunctioning.
2. I couldnt use the provided towels as they stank like chlorine.
3. The location is a little bit tricky. It may seem close to the center but with current Istanbul traffic, it is very hard to even grab a taxi in busy hours. It is walkable until Nisantasi though.
Other than that, if you are a young traveller and dont want too much noise or interaction with owners, its perfect for privacy. Not reccomended for families or large groups.