The Blue Tuana hotel was the best choice we could make in this trip! :D. It is located in the old town of the city, next to the main monuments (just five minutes away walking), the facilities are great (including delicious breakfasts - the little sausages were awesome :P - in a terrace with great views to the sea and the blue mosque), the room was clean and well decorated and the staff was unbeatable! They were helpful, polite and very nice at all times. They took care of all the details so we could love our stay in the hotel. 100% recommendable :). If we go back to the amazing Istanbul, for sure our stay will be again at the Blue Tuana :).