We had a nice week-long stay at Leo and Arzu's attic apartment. They were extremely responsive and easy to get in touch with, and were even able to accommodate a special request to make our stay possible.
The location is really nice - moderate walk to the el, but also easy to drive everywhere (which is what we did). We never had to park more than half a block away.
The apartment is pretty basic, which for us, was not a bad thing. We had everything we needed and enough open space for our stuff. There were basics to cook but we only really used the microwave.
It was a pretty hot summer week so we had the air conditioners running a good amount, and there are enough to keep the place cool. We also made use of the available laundry room.
The stairs up to the attic are a bit hard to navigate (especially with luggage) but you start to get used to them as time goes on.
Overall we enjoyed our stay.