Hatice gave us a warm welcome in her coffee bar downstairs. She gave a lot of tips and was also available via Whatsapp and the telephone (landline) in her apartment. Besides things like a TV, A/C, refrigerator, washing machine, a safe, an alarm... she also provided turkish sweets, lots of fresh water and towels.
The appartment (Gold, room 5) had a great view to the south and west and a nice little balcony. The appartment was clean and the beds were comfortable. Although we only slept there, it had everything you need in an apartment.
The area is very close to the nice area near Istiklal Caddessi. Down the hill there's the Buyuk hamam. Unfortunately we didn't had time to get a massage but it's supposed to be a nice experience and not touristic at all. The area around it is a typical Turkish neighbourhood and nice for a walk, but there's nothing much you can do but check out kitchen furniture stores (shown on Google maps as restaurants). The people in the neighbourhood are very friendly. Just say 'merhaba' (hello) and 'tesekkur' (thank you) every now and then and you will definitely feel welcome.