A friend and I are in Instanbul for about 10 days and we have used many of your suggestions, especially Istanbuleats. Thanks to all the posters who have done research for us prior to our visit!
We are going to try Ciya Sofrasu today. We are very excited about it. Hamdi's is a favorite of ours too. We have already eaten there two times. The view is fantastic with the 3rd floor being the best. We would also like to recommend the small restaurants on Hocapasha Soaka near Sirkaci Station. There are many small places that are top-notch. Our number one favorite place is Kesap Osman for Iskander kabab. There is a place kitty corner from that where we have had lentil chorba twice and it also has outstanding firin sutlac.
Thanks and enjoy!!!