I feel like all I will do is echo what people have already said but the Black Tulip is a wonderful budget hotel. The service and hospitality offered by the staff was second to none, the breakfast buffet was superb and the location, well, you couldn't be more perfectly placed to see Hagia Sophia, the Blue Mosque, the Topkapi Palace and you are only a short walk from the Grand Bazaar. Yes, the rooms a little small, but perfectly fitted, and why would you want to spend to much time in your room anyway? You're in Istanbul! The beds are a little short, I am 6ft and I my feet would just poke over the end of the bed (but I don't sleep like a plank of wood, so that wasn't an issue for me). In summary, if you're thinking about staying here, then do. Just book now.