Yusuf and his crew run an Airbnb apartment building, one per floor, rooms all have similar but slightly different decor. Harum at the front desk was the friendliest of hosts, marked up a map for us to make sure we saw the sights, recommended restaurants, taught us about the Istanbul Card to use the metro and tram and a nearby hammam for guys that was an authentic experience.
It was a bit of a big step up into the shower/tub (because of the Jacuzzi pipes I imagine) and I suggested that they instal a towel rack.
The room was nicely furnished. The first room's A/C wasn't working well so they immediately put us in another room which was super nice of them and it worked very well. The lobby area was fun to meet other travelers and have cookies and tea/coffee every time we came through. Very local neighborhood, about 15 minutes from Hagia Sopia, Blue Mosque, etc. They have a modern hip restaurant across the street with local Turkish food. Though I didn't meet Yusuf his staff was great.