We stayed in Erhan's place for 4 weeks. Apartment was very clean, light and warm. It's equipped with everything you might need. Every room has big table if you need to work, internet is not the fastest but very reliable and you can expect good signal throughout the flat. Location is perfect - 5 min to Galata tower, 5 min to metro station and with 2 grocery shops nearby. Erhan was very helpful and was always available on WhatsApp in case we had any questions. I would definitely recommend his olace for both short and long stays.