Like the location a lot, just on the edge of a busy neighbourhoud, very close to major attractions. Very clean. Quiet (no traffic noise, as rail is still work in progress). Spacious.
Very friendly personell.
Beds are too hard for my concern, and pillow too soft. But thats personal.
Only on saturday I heard the mosque close by at 6AM, but don't think you can avoid that in istanbul.
Some shops very close by, and if you like can eat breakfast within 3 mins walk in restaurant.
There were enough numbers to call when I arrived for entrance. But can take 10 mins or so. Not annoying, I could even use Wifi for search as they mentioned acces code on note (had issue with mobile connection on my phone). Showing that owner is very helpfull (as all people were indeed!).
All in all : I was very happy that I booked here.