We had a long layover at Ataturk and arrived at Alihans around midnight, he greeted us with a smile. The place was pretty clean and in a really good location (right behind blue mosque). I would stay again. The only problem was with the airport transfer he had arranged, they were about an hour late and there was really poor communication between 3 different "ride arrangers"... Its probably easier and cheaper to take a taxi and the metro is very easy to navigate as well.