The value you get for the price is amazing. You're put in the centre of the historic centre of Istanbul with very friendly owners that are quick to reply and help out. The Internet speed is good even in the evening, which is usually not the case with cheaper airbnbs. The only thing you must look out for is the thin walls and doors, so it might get a bit loud. But for a budget place, it's not that big of a deal. Highly recommend booking the place!