Selçuk is a great host! He is always ready to help and is also a great cook. Especially his Turkish breakfast on the weekends is amazing.
I stayed with Selçuk for my semester abroad at Boğaziçi University. But I would also recommend staying with Selçuk if you are only visiting Istanbul for a short time.
The apartment is located in a relaxed neighbourhood but also not far away from the main tourist attractions.