In my opinion the hostel is not worth the price it's offered. I have certainly had better stay at places in Kadikoy in the past. The bathrooms are most untidy, lacks tooth paste!body shower. The drainage in the bathroom most be faulty because it has a strange smell every time walk in. The general state of the room is semi tidy, the finish work of the building was done haphazardly. Broken tiles here and there, visible piping on the wall, broken ceiling boards. I suppose they could be fixed but I wonder why they chose not to. My general feeling about this place is that it should be cheaper with the state of the room being as it is.
On the other hand their check in service was fast, although expect to check out at 11:30am, not a second later they really do stress on it. I am show they could improve In lot of ways, starting from the smell in the bathrooms.