I have spent 4 days at Züleyha's apartment and it was a great time. The apartment is really well-located! It's in the heart of Beyoglu and the pedestrian street 'Istiklal' is 5 min away. There are nice shops, cafés and restaurants in close area.
Züleyha as a host was absolutely great! She has a real good insight when it comes to sights and places which are worth visiting. She can also give you some great advice on bars and nightclubs.
The apartment is nicely decorated and she has a very nice balcony with a view on a French palace.
It was fun to stay at her place and I can really recommend it to everyone!