I stayed in Michael's place for 8 nights. The location is FABULOUS! It is a block away from the Quay D'Orsay on a quiet street. Everything is easily accessible. The view from the balcony is of the Eiffel Tower and the onion domes of the Russian orthodox cathedral. Really stunning. As the write-up states, the space is small. However, for such a small space, it is well set-up. I was particularly pleased with the bathroom for such a small place.
While I found the fold-out couch comfortable as a bed, I did not find it comfortable as a couch. And the chairs around the table are small. I was there long enough that I used the place to work and relax as well. I ended up moving a chair from the balcony inside to have something study and relatively comfortable to sit on.
The apt is modern but the wall is peeling in the bathroom and the kitchen cupboards don't all close. The building itself is nothing to speak of.
Even though the unit is on a quiet street, it is close to busy streets and it was possible to hear some street noise at night. But that is just city life.