This is a mixed review: If you are on a tight budget and want a centrally located barebones hotel, this might be for you. But you should know a few things>
First, the staff are very friendly. We arrived after a red-eye flight and they got us into our room early (which we appreciated). You need to walk up a lot of stair (narrow and windy). There is a very small elevator but you need to walk up 1.5 flights of stairs before you can access it - if you have mobility issues or are just really tired after a long day of sightseeing, this will be a pain!). The water in the shower goes from cold to scalding without warning and for no reason - expect this 3 - 4 times per 10 minute shower. The room was bare bones but clean. We didn't go to Paris to stay in our room. The location is great - easy jumping off point for all the great sights. Shampoo is terrible (seriously, get your own). Again, if you are on a budget and want to see Paris - this might be the place for you, but you should know the details before booking.