The room is clean, well deisgned, well furnished.
Only 2 things to take in mind.
The stairs is really steep and will make tired everytime you go up (5th floor) 76 steps.
The Bathroom is well furnished, but small, and is a glass box, so if you are not alone, be with someone you are really comfortable with.
The host is perfect, location is great and fun, Air conditioning is great, hot water is there, you can see Galata tower from the window, and you go to all great places by walking, metro is 3 minutes far away.