We had a very memorable trip in Istanbul. The apartment was fantastically located in Sultanahmet right near the Blue Mosque, Hagia Sofia, Topkapi Palace and the Hippodrome etc.
The apartment is located up a flight of stairs but we didn't have any issue getting up and down with a baby stroller, and Marco helped us with our luggage when we arrived. It was fantastic to have two bedrooms and every room had air conditioning (which was appreciated even though we didn't need to use it).
The kitchen has everything you need and includes a washer/dryer. Everything was clean and well maintained. We had a mix up with our check out (totally our fault) and Marco, Elif and Fernando we extremely accommodating. We would absolutely recommend this apartment to anyone visiting Istanbul.