The flat is really well located, less than 5mns away from the blue mosque by foot. It is also very clean and comfortable. Rifat is a very nice host, ready to help you in case of any problem.
The mattress was very soft : I absolutely loved it but maybe it's not ideal for people with back issues. Also, the district is quite animated : barely no bars or restaurants, but the people living there speak loudly in the streets, sometimes late at night. It's nice for those of you who want to live with the locals, not if you're looking for a very peaceful area :)