The definite positive of this place is the location! We walked to the blue mosque, aya sofya, grand bazaar, spice market, and the harbor. There are lots of restaurants and street food vendors, lots of activity. Also this apartment comes with a free breakfast. You eat it at Naz Wooden House hotel, with a beautiful rooftop terrace overlooking the bosphorus. Wifi worked well, kitchen nicely appointed, and they give you water bottles free of charge.
You get the keys from Naz Wooden House hotel, which is the next block over from the apartment (not next door neighbors). The people there are very helpful. Always tried their best to offer advice, etc.
There were a few downsides to the room...Our room was much smaller and darker than the picture looked. It also wasnt exactly the same as the picture....i booked a triple room (3 beds) but we got a double room instead. No big deal for us, but fyi. The shower was kind of a mess...the doors were broken, and the seal around the shower was old so water leaked everywhere. Also, there was a pretty intense and persistent smell of sewage in the bathroom. As long as we kept the door closed, we could tolerate it. Other small annoyances were things like one of the beds in the room was missing a sheet, so it only had the top blanket on it.
All in all a decent apartment, not perfect or the cleanest place, but definitely good enough just to have as a home base while exploring!