Great location with Bixi bikes and Metro (subway) very very close by.
We were (4) separate guests and really needed the beds and the pull-out-sofa to work well for us.
Unfortunately the pull-out is not in a condition that is usable - certainly not at the summer special-weekend (high tourism for Formula One event) pricing.
Great communication though. If you don't need the pull-out for your guests - no stress then. Would stay again then.