I stayed there for 2 nights and everything was perfect. The apartment was cozy. The location is the best for people who like partying. It is less than 10 mins to Galata tower, 1 min away from the main street and 1 min to many pubs, bars and discos.
The host is super friendly. He let me check in earlier and keep safe my luggage for the whole day after check out. He helped me a lot with some other stuffs too.
If i am coming to Istanbul again, i will definitely stay there again!