Stayed in a hotel for the January holidays for five nights. I liked it in general.
The hotel has a chic location of -10 minutes and Aya-Sofia, 5 minutes and a bus stop that will take you to the new airport (you can pay in cash, online found information that only Istanbulcard).
The room was on the ground floor, but it is very comfortable - high ceilings, comfortable bed with perfect linen. Cleaning every day, as well as replacing towels and replenishing drinking water, tea, coffee. There's a minibar.
Breakfast is standard for Hotel 3* - slices, pastries, fruit, eggs, eggs or scramble. Hot every day is new. Coffee or tea is brought by the waiter.
In general, the hotel has a good environment, which is conducive to relaxation and enjoying Istanbul. It was very comfortable. The only downside is the price tags at the restaurants and cafes that are nearby. Everything is 30-35% more expensive than if you go to Aksarai or Laleli district, but on the other hand it is a historical center.