Evrim has one of the best locations in Istanbul. Location was one of the best and ever experienced.
Within walking distance, to EVERYTHING! Note, you are in the hustle and bustle, so be prepared for noisy streets.
However, the place was not clean. It was tidy, but needed a deep thorough scrubbing. There was a lot of dust and hair in the house. Even old take away bags from previous guests in the corner. If it was not for the location, we would have been disappointed. Note it is an old apartment as well, and could do with some renovations, but all works as expected.
Evrim, you have a gold mine with your apartment, spend some extra cash on the maintenance/cleaning of it and you could actually charge more for it.