We were greated by a friend of Lea's, who showed us around and explained everything. Beforehand Lea was very communicative- her responses were fast and she was very acommodating in respect to our arrival/leaving times.
The apartment is as discribed. You have to climb a couple of narrow stairs in the back of the house- only exhausting with heavy luggage!
Otherwise it was very clean and nicely furnished. It came with dishes and also a little bit of food- left behind by previous guests.
The location is ideal. Only a few minutes from Place de la Republique (with metro access).
The only negative point I can mention is, that unfortunately the dishwasher isn't working, and we only found out after the fuse blew. But that is really a minor thing, as you can wash everything in the sink very comfortably.
We would definetly stay there again. Highly recommended!