We had a great time in Istanbul, and at Enver's apartment. Enver is a helpful, social and very friendly host, always ready to help with anything via WhatsApp. He came running for the checkin 2 minutes after I send him a message. The apartment is even better than the pictures and description, cosy and practical at the same time. The location is great, you can people watch from the window, there was no noise. It is 3 minutes walking to Taksim square, just walking out the street of where the apartment is (there at Taksim you'll find our favourite Çağdaş Börek for breakfast, and almost next to it a great Jemeni restaurant), the area is full of restaurants and there are 2 supermarkets right outside of the apartment.
Although the apartment is not big, it doesn't feel constrained as some other Istanbul places, it has a large street entrance and just one flight of quite roomy stairs. There is also some distance between the living room/kitchen and the bedroom, if one has collapsed from all the Istanbul impressions, and the other is busy planning the next day. We would love to come back to this place.