My family of 4 stayed just for one night, and really liked the location. The apartment is roomy and the beds were very comfortable. I loved the big windows and the view of the Eiffel tower.
Communication with Pick-a-flat was good and timely.
The apartment could use some maintenance - the bathroom shelf was tilted, door frames were chipped, and overall there were many details that could be fixed to enhance the overall experience since it was not cheap.