This is a nicely appointed flat in the beautiful area of Kruçesme, Besiktas. VNG was super responsive to questions and requests. Do be aware that this flat is located at the top of a steep hill, with approximately 70 stairs and sloped roads between the flat and the main road along the Bosphorus. If you are able to do the climb, you will live the views from the rooftop terrace! However, if you have physical limitations, this is probably not the place for you
In Istanbul, Uber calls a taxi rather than private drivers. We found it difficult to get a taxi to pick us up at the flat, even at the bottom of the side street on which it's located. We had to walk down to the main road to hail a cab or get a cab to accept the Uber request. It's about 16 I'm (10 miles) from there to Sultanahmet Square. The cab ride from there to Sultanahmet Square in the morning takes approximately 20 minutes and costs about 55-60 Turkish Lira (US$7). However, because of traffic, it was nearly impossible to get an Uber request accepted in the evening to return to the flat. We had to hail a cab and then promise to pay 120 Turkish Lira (about US$15) in order for the drivers to agree to spend the 45-60 minutes sitting in traffic to get us home. Just something to be aware of.
We loved the neighborhood and felt very safe there and in this ground level flat.