We had a great stay here. I believe Kamil runs two different hotels that are a block or so apart from each other. The place where we stayed was called Denis House. It is very close to Hagia Sofia and the Blue Mosque, so this was a great location for us. We used the airport service they arranged and it was easy door to door. The place itself was simple and nice. We had a small bedroom and a small sitting room + bathroom connected by a long hallway -- plenty of space for two people. The small terrace looked out to the water (and a highway, but wasn't too loud). There was a small refrigerator and a hair dryer, plus wifi. Breakfast in the morning was a traditional Turkish breakfast. Overall a lovely place.