Mehmet was an excellent host. He met us at the Tophane train station the very first day and walked us up to the apartment. He was very warm and welcoming and provided us a map, a metro card and lots of advice on sightseeing in Istanbul. The apartment itself was very clean, with a lovely open air garden and the location was very convenient, midway between Tophane train station and Istiklal street. The streets leading directly to the apartment are slightly steep and cobblestone-d so just be mindful if you have big luggage, but otherwise, great stay, highly recommended!