The hospitality here is incredible! We were here for a layover and arrived around midnight. There was someone waiting for us with tea and cookies and helped us to our room. In the morning we were also offered coffee, tea, and cookies. They sat down with a map to give us tips on how to see the city in a short amount of time. They also arranged transportation to and from the airport.
The room is only about a 5 minute walk away from the Blue Mosque and 10-15 minutes from the Hagia Sophia.
The room was very stylish and spacious. I didn't hear any other guest noise.
I would definitely recommend staying here if visiting Istanbul!