We loved our 6 day stay in Istanbul because of the location of the airbnb! It was the perfect location and Pelin gave us clear instructions to get to her apt from the airport. Taksim Square, the metro, grocery stores, restaurants and istiklal street are all walking distances from the airbnb. The apt is located in a safe neighbourhood on the third floor with no elevator access - which we didn't mind at all.
Everything else was great and we would stay here again on our next visit to IST!