Nıce apartment. Isil is a great host. The Fener area is 20 min walk distance from Eminönu / Galata bridge. Or you may just take bus route 99.
The flat has everything you need to stay for quite long time, including washing machine.
The building has wooden ceilings and is a bit noisy, but we had no problem with that.
I recommend to take taxi if you come from Araturk airport, because it can be hard to find the place for the first time.