Irina's apartment is really charming and full of characters. It's clean and comfortable to stay plus the location is prefect, about 5 min to public trasportion or you can walk to lots of places. There is espresso machine in the apartment which is so lovely that you can have espresso every morning. When I was there (early Sept.) the elevator was still under construction which was a bit inconvenient for me to climb to 4th floor. Maybe it's all done by now.
Baseline: recommended! if you visit Paris.