My stay at Ansen hotel was great. The penthouse was great with the tub outside the glass bathroom. The view is amazing outside your balcony. The restaurants are literally outside the hotel. You can enjoy a cup of coffee or a Turkish breakfast.
The staff are great, whatever you want, I mean whatever food you want, they will order it for you and have it delivered to your room. I would definitely stay here again.
Istiklal Street, rooftop hookah lounge, metro, ATM's, money exchanges are all walking distance from the hotel.