A good hotel, and very inexpensive. Found through Booking.
The room had its own shower, and one of the employees helped to drag the suitcases to the third floor.
The location is also convenient.
The most important plus is that all the sights are within walking distance (Sulaymaniyah, Egyptian Market, port Eminonu. Grand Bazaar, SultanAhmet, Hagia Sophia, Laleli market.
One of the disadvantages is that the alleys are not very clean