I had a wonderful time staying at Nelly's. She is a very friendly and helpful host. She replies quickly to messages and is ready to help at all times. The apartment is great and has everything you need. The location is excellent, a couple of minutes from Omer Hayyam Street, which leads directly into Istiklal, so you are near the bustling city center of Istanbul is a few minutes. Some previous guests mention that the neighborhood is "strange" or something, which is a bit sad to read. The apartment is in Tarlabasi area, which is generally a bit shabby and rundown, but is also lively and has a unique Istanbul vibe, I find. The area is very safe with its steep streets, you will get some exercise :-P All in all, it was a great stay at Nelly's and I would definitely recommend!