We spent 5 nights at the apartment. The place was clean, quiet, comfortable, and big enough for two. There was an elevator that helped with heavy luggage. The location gets definitely 5 star, within walking distance to many sights, bars, cafes, restaurants, and tram station. Also, lots of supermarkets and a nice bakery around to buy daily needs. The bed was very comfortable and the place was warm enough for early march.
However, the place is very minimally equipped for cooking. We had to buy our own water and coffee. The water spray in the toilet didn't work and there was an issue with the electric water boiler which the host replaced. The internet access instruction was a bit sloppy, we had internet issues some days but then the host provided access to the main router which resolved the issues. This should have been provided upon arrival.
All and all, we enjoyed our stay at Yakups's place and would recommend it.