Location, location, location... Can't beat it. Walk to Hagia Sofia, Sultanahmet Mosque, Topkapi, Cistern, Grand Bazaar, shopping restaurant, you name it.... You just need to go out and walk few steps.
With this you don't need a car, for anything. Walk to tram and go anywhere far as well.
What makes it even better? Amazing staff and service. So polite, always taking care of your needs. We had an excellent room, with unmatched view of Hagia Sofia, but it was not suitable for my big family. They moves us so smoothly, all (a lot of) our luggage, as we focused on exploring area.
Always asking us for things we may need. Always offering complimentary drinks, always smiling.
Great great people.