This flat is just an amazing one, it is much more that can be desired by a traveler. One of the guests who wrote in a comment here that photos didn't depict how perfect it was is absolutely right because this flat is really perfect. It is very big, clean and fully equipped. You can find all the necessary stuff for cooking in the kitchen and everything that you need in the bathroom (towels, soap etc.). Ebru and Mustafa are very polite, hospitable, friendly and helpful hosts. You can always ask them for help and, what's more, Ebru makes awesome coffee :-) This flat is very, very good for a long-term stay. As for the location, it is situated very close to the main street of Umraniye district where you can find a lot of stores, cafes and restaurants with very reasonable prices. The only drawback might be that it's quite far from the main sights of Istanbul but you can get everywhere easily using public transport. Note: you can buy 'Istanbul Card' for that.