Hotel owner change the location from mentioned to other. Thats just 3/4 hundreds meters away. but really hard to find and hell kind of a experience to move your luggage along on Taksim area's steep rampy street. And he allocated appartment at 4th floor without lift and narrow stairs. After Taksim street these stairs was like to put you in death zone.
while no doubt the appartment inside was cosy and comfortable and had all necessary supplies inside already.