Cute little room (maybe 18-20m2), perfectly cleaned, well decorated with all you need (towels, slippers, tea etc), comfy bed, good shower pressure (although mini bathroom sink), good aircon. Easy check in/out, secured building and close to metro (Bolivar/Jaurès). Rental management company very responsive and helpful if needed.
However on the first floor without lift, location is not the best area of Paris and the window of the room is straight in front of one of another appartement (so need to keep it closed in summer). Could also hear neighbours at times.
Would recommend for 1 person for a few nights if you need to stay in that area.