I was there for a month, and it was decent overall. The place is clean, very modern, and has most of the ammendities you need.
Though, I wish there was a living room or something to get to the know the other guests. It's rare to meet anybody else while I was staying there as everyone stays in their room.
The location is great with endless cafes, restaurants, and transportation options. It's only around 5 minutes to the ferry/metro.
The service is wonderful with Gunay and Asrin being very responsive.
The whole street's electricity went out a few times during my stay, but that's not really the host's fault. Internet is decent enough for working but has a tendency to go out, and some rooms I heard have weaker wifi signal than others.