Pelin is a great host. We arrived just before midnight and she received us without issues. She gave us good tips for eating and moving around the city.
The apartment is great, it's small, but it has all that you need. The location is excellent. Full of coffee shops and bars around and walking distance to Istlilkal and Taksim, or the tram to Sultanahmet.
Neigbourhood is safe, we walked around at 3am without issues.