"Absolutely worth the money"
I stayed one night, in connection with a business trip. Some reviewers correctly point out that the rooms look dated, and are a bit small. In my case, the bathroom door couldn't open all the way, because a bed blocked it, and one toilet seat wouldn't stay up because of how it's situated in the corner.
But, honestly, if you visit Paris, why are you worried about not having an American-sized room? WOW, was the bed comfortable, the shower great (once the hot water got going, which did take a few seconds), and... well, I I'd say "elegant" or "charming" give much better descriptions than "dated". It's not as if things were in a state of disrepair, after all! I've seen modern hotels in disrepair, but everything here looked very well put together. I was even able to open the windows & look outside, see into classrooms where faculty were giving lectures at the Sorbonne, & walk easily around town. The desk and chair were, yes, small and of older fashion, but I was able to work quite fine. Elevator & internet worked well (though I wouldn't recommend two in the elevator, unless you're... close). I slept soundly, being woken 2-3 times by rowdy folk outside (you are smack in the city, after all), but feeling quite refreshed in the morning.
I didn't try the breakfast, so I can't comment on its value.
I would gladly return to this hotel, especially at the rate I paid. I only wish I could have stayed longer to enjoy the city more; smack in the Latin Quarter, it's a perfect location.
Traveller from Hattiesburg, MS