Great apartment, very clean and tidy and everything as shown in the pictures.
Few small things that can be improved for the future: at the arrival we received very informative videos on how to find the apartment, street and key. However, it would be very good if there was also a video on how to open the front door as it is quite difficult if you don't know how to open the door. As we didn't have a working simcard yet or internet and we were struggling a lot to find a way to contact the landlord for instructions. So for other people I think it would be great to have an instruction video for the door as well.
Also there was an construction going on across the street which was very noisy (3 meters from our window) especially in the morning.
Also, location is good and close to taksim square, but for us personally it was quite a hassle to cross the busy road before taksim starts (takes some time and sometimes the tunnel is closed so you have to walk all the way around the street to get to the other side).
Overall good experience!