The place is amazing. Exactly as advertised, and the neighborhood is nice a quiet at night but you're a 5 minute walk from the main road and around 10 from İstiklal street. Ömer was a great host and helped us several times: he had the cable fixed at 6pm on a Saturday while we were out and sent a wifi range extender for the upstairs area, gave us his login information for the sports channel so we could watch the F1 races, gave us a bar recommendation (corner Irish bar, which we ended up going to every night), and sent me the address of his tailor when I ripped my jeans. The two terraces are awesome, it's super nice to have a view of two sides of the city. He is super responsive and will help you with anything you need. There is definitely plenty of room for several people, and all the facilities you could need - full kitchen, two bathrooms, washing machine, aircon, etc. Right up the street (20-30 meters) is a supermarket where we got all of our groceries, and there are several bakeries in the neighborhood and a beer shop about 4 minutes away. Nearest metro is Şişhane, about 15 minutes walk. You can connect easily to the entire metro/tram system from there. Taksim square is about 20 minutes away, up İstiklal street. There are plenty of bars, restaurants, and shops in the nearby area. There is no Aircon upstairs so it can get hot but that was never an issue as we were out all day, just open both doors up there when you get back for the night and turn on the fan; it should cool off significantly in the evening. Downstairs will stay cool during the day. We spent time mostly downstairs in the dining room/kitchen and then in the evening we would sit on the terrace for hours once we got back for the day. Would definitely recommend staying here if you're coming to Istanbul. Thank you Ömer!!