The apartment is very comfortable, with good size bathrooms. Getting there via RER and Metro was easy, and we were met immediately by someone to let us in. The upstairs bedroom is roomy and the bed is comfortable. (Note to future guests who come via Metro: At metro stop Alexandre Dumas you can see both rue de Charonne and boulevard de Charonne; don't get them mixed up.)
The lighting in the apartment could use some updates, but it is nothing serious.
The apartment doesn't really have any living space other than the kitchen. We knew that to be the case from the listing and reserved anyway. Please note if living space is important to you.