Serdarr’s place is wonderful, it’s a boutique hotel which is pleasant, has a terrace on the roof for breakfast, to have tea & coffee as well as view of the ocean. Will look terrific in the summer and spring when it’s sunny. You can catch the sunrise and the sunset from there. You are 5/10 mins away from the Blue Mosque and Hagia Sofia. Serdarr is a wonderful host, offers you tea or coffee, great environment, easy to talk and can help you decide in what to do in Istanbul. He can organise shuttles or private transfers for you to the airport. I would recommend to stay at his hotel.