As others have indicated, the studio is ideally situated with easy access to Istiklal Avenue and its clusters of restaurants and nightlife, as well as to the hipster cafe scene in Karakoy and trams that'll have you among the Sultanahmet tourist throngs in minutes. The place itself will serve the solo traveler or couple quite well. The furnishings are arranged to make the most of the compact footprint and everything is reasonably well maintained. You might need to fiddle with the shower a bit to get the water to your liking, but that's just a matter of patience. Ahmet was a warm and responsive host, and I'd easily recommend his apartment to anyone considering to stay in the area.