Hello,
We booked a week with Berk in Istanbul in August 2019.
We had the pleasure of discovering our apartment in good condition and clean, we were welcomed by a kind of steward for the apartment who was perfect. He was friendly, considerate and attentive, and made us visit the streets and markets near our flat, but he doesn't speak English very well.
The apartment itself is in good condition but located in a cellar, a stone's throw from Istanbul's main tourist street.