Pelin's place is amazing! I really enjoyed my staying. The apartments is spacious, clean, super-duper cute and cozy. There is everything you need for a comfortable staying: kitchen with all the supplies you might need for cooking, a spacious wardrobe, an air conditioner, an iron, towels, a hair dryer. I felt myself like at home. The WiFi connection and speed are very good if you need to work remotely. But be prepared to go up the narrow spiral staircase to the 2nd floor, it can be challenging :-))
The neighbourhood is spectacular. There are plenty of restaurants, groceries, bakeries, coffee shops, vintage shops etc. Although Pelin's place is in a quiet and peaceful nook where you won't be disturbed by any sounds of the big city. The Taksim square is about 5-7 min walk.The bus stops to Fener and Balat are just in 10 min walk. The same is for the stop of T1 tram that takes you straight to Sultanahmet area.
I must also admit that Pelin is a wonderful host. She was always there when I needed her help. The medal "The best airbnb host 2020" should definitely go to Pelin!
So, if you ask me where is the best place to stay in Istanbul, my answer will be obvious.