Staff were exceptionally pleasant and helpful. Location is right next to Montholon Park. It is used all day up to about 10:00pm for basketball. The kids and arguments are loud. Every morning a street sweeper went by our windows 4 or 5 times! Our room's layout was odd. Toilet with sink separate but no hand-soap. Shower bath was okay although the shower fell off the wall. Biggest problem was no air-con. Not unusual in Paris but it makes sleeping almost impossible.
On the plus side, the hotel is only 200 metres in a straight walk from Cadet station. (Turn left for 25 metres before you get to the park) Cadet station is small, quiet, and it felt safe. It seemed to be manned during the week and two ticket stations are available that even I was able to operate (eventually).
In short, I liked the location, the staff but air-com, less noise and a better range of cereals for a continental breakfast would make a healthy difference.