Yusuf and the reception guys was very friendly, welcoming and willing to help. Perfect location (in my favorite part of the city). Lots of small shops around and a medium sized supermarket. Close to Sultanahmet and the tram. The room was spacious, pretty well maintained, not the 5-star hotel, but still very good - daily cleaning, towels, shampoo, soap, garbage etc. Nice lighting with a lot of options. Jacuzzi was pretty cool as well.
However, adjusting the water temperature required a real precision:-))) We were on the second floor and the sound insulation could be better as we sometimes heard what was going in the lobby downstairs.
Overall a very good experience. Definitely will return to Yusuf on my next trip to Istanbul.