The location of the apartment is very central at the Galata Tower. The rooms were clean. Communication with Erdem before and during the stay was straightforward. He also organized a cheap airport transfer for us. Erdem was unfortunately not in Istanbul during our stay, but his colleague Çiğdem was there for check in and very helpful.
There was unfortunately no elevator (4th floor), but you can still manage the stairs. There was a delicious cafe right downstairs from the front door where we had a Turkish breakfast. Would come again and again, we had a very lovely stay!