During the week we stayed there, we saw at least 7 different people manning the one-man front desk. One was friendly and helpful. The others hardly spoke a word.
The room was spacious and clean enough. The shower was strange, with only a handheld sprayer and no shower curtain. The elevator was tiny and SLOW.
That said, you cannot beat the location. An easy walk from the Seine, Notre Dame, the Louvre, and multiple metro stations to get you anywhere else you want to go. I would absolutely stay here again.