I stayed there with GF for 3 nights. Booking and check in were smooth. The studio is small but very well organized, furniture is minimalist but of good quality. The bed is comfortable. The 4th floor without elevator might bother (in fact the 4th is more like the 5th or the 6th) , particularly if your down and you've just realised you forgot something upstairs :) But is Paris and you shold not have reasons to return home during the day, partcularly in such an excellent location and that is why we did not feel the absence of a couch or a second arm chair - actually we did not switched on the tv in 4 days:)