The room is very nice, the bed is comfy, it's clean and it has a small terrace. The wifi is good and there is hot water. Onder and his roommate Zeyid were very nice, they are great hosts. They let me leave my luggage when I arrived earlier and also when I left later than check out time. Just be aware that their apartment is on the 5th floor and there is no elevator. Zeyid was kind enough to help me with my luggage. It's located near Taksim square.
Highly recommended.