This place was great, quite old and authentic. Our flight was delayed so we arrived 4 hour after agreed move in time, but the nice manager lady stayed in touch and we moved in without a problem.
The apartment is clean with all necessary utensils.
The location is absolutely perfect, close to the metro station, restaurants and shops, 2 mins away from Galata Tower.
Julia was so kind to send useful information in advance about all nearby attractions and places.
The only downside was that it was quite cold in the apartment, because some windows were always open to accommodate portable ACs. The manager offered to come and set up a heater, but we had no time to meet, considering we were only staying for 3 days and had a busy schedule.
All in all, I would absolutely recommend this place and will gladly come back for my next trip to Istanbul.