Great place for at long-weekend in the heart of Paris. Great neighborhood, the Louvre is like 3 minutes away and the metro is right next to the apartment. If you have expensive taste or like to live central, this is the place for you.
We did have share a toilet, but that wasn't an issue, as we didn't encounter any of the other apartments that was sharing it.
The internet was superquick(quicktip: bring your own chromecast so that you can watch something that isn't french on the TV ;) )
If you are staying for more than 4 days and you are two person I wouldn't reccommend it that much just because of the bed. It's a sofa bed, the madress is split in two and one of them slids out really easily. Maybe we did something wrong, but it didnt seem like it.