I was very satisfied with my stay at this apartment specially because of the comfort and location. The neighbourhood is nice and has lots of cafes, restaurants and metro in the vicinity. The street is mainly with clothes shops, has low traffic and its desert and quiet at night.
Note that its a 3rd floor without elevator in case you have heavy luggage. It was not a problem for me.
The contacts with the management (Mert) were nice, quick, easy and any issue solved very promptly.
Nevertheless the apartment already needs some maintenance and improvements due to long usage (some small damages on furniture, pavements, walls, sofa and bed sheets with some cigaret holes (shouldn't be in use), towels were very old and hard, refrigerator needed to be clean inside, windows lock was damaged and not working properly). There was some smoke smell in the 1st day, eventually from several ashtrays. I am not a smoker so I am sensate to that, but opening the window for some hours solved this.
If the above small things are fixed its a perfect place to stay. Overall was very good anyway.