Amazing room for 1-2 people, with a really comfy bed. It has a good assortment of pans and utensils. Great heating and conditioning system as well. On top of that it has an amazing view and a shopping mall close by where you can find anything you might need. Also jay speaks English and always got back to my texts very quickly.
The only negative thing about this apartment, is the fact that one of the bars in the shopping mall starts pumping out music early in the evening till late night. During the evening is not noticeable at all, but at night it is. I personally slept with no problem as I am used to city noise, but other people might find it annoying so something to keep in mind.
The apartment is few minutes away from Marmara train line that takes you to Sultanahmet in about 1 hour to 1 and a half. Honestly if you considering between a place in the city center or this, get this. Especially if you are used to travel by train. The apartments and hotels in the historical part are super expensive, with very small rooms.