Overall, I liked my stay at this place.
The great central location balanced out a couple of the non-crucial aspects of the room which could be improved for more convenience and comfort of airbnb guests.
The place needs a new mattress. Prior guests have hinted at this. The mattress "springs" on the current one in some places are just bent down from (over)use. But sleeping is possible, and I slept by the closet side of the bed.
The refrigerator could be colder (there is no freezer section), and no longer has shelves -- so it was not so simple/easy to keep much in it.
There are a couple of good normal and "bio"/organic" food stores near. Very convenient. Good selections in them. (Note: there are two cooking stove tops, but no even small portable oven.)
During my stay there were no real curtains, rather there is a single piece of "block-out (light)" curtain material which hangs over the pole. It is effective for controlling light, but not very convenient to manage. Sometimes this piece of material fell down, and needed to be put back up. Using the plastic stool to stand on.
The room window-view is better than the photo I saw before indicates. The top half of the Eiffel is visible readily, and puts on a show at night. The historic St-Germaine de Pres church is readily visible too. And if you know where to look, you can just see the very tip top of Sacre-Coeur to the north over some of the red chimney pots. And there are birds in the trees in the courtyard below the windows. Nice to hear them. Good view!
There are very many nearby places to eat, munch, forage, sit, watch, walk...
And the area is full of art $tudio$ for day/night walks.
You are about 2-3 minutes walk to the southern part of the Pont Neuf bridge and Seine! Location is super. You will see nearby locations in Paris movie scenes.
There are bus stops heading in various directions nearby too. (Get a week-long "Navigo" pass?) Also nearby is the St Metro Germaine-Odeon station. The famous "philosophers's cafes" are 7-10 minutes walk away.
If there are two guests, then a second stool/chair would need to be asked for.
One door of the shower-stall (inside the room) was not quite fully in its lower slot, but it was not a real problem to manage to keep the water in.
I liked my stay, and will recommend it to friends, without hesitance if some -- especially the mattress -- conditions are improved for a more pleasant/comfortable stay.
Host Alexandre was responsive and friendly, though we never met in person.
Good price. Great location. With conditions recognized, recommended!