As it happens I was just there for the first time two weeks ago. Overall, I would stay there again but it would not be one of my favorites.

Plusses:

--Very helpful, accomodating, and friendly staff
--Easy walking distance from RER St.Michel station, reached without transfer from CDG (but get very precise instructions)
--Notre Dame location is marvelous

Minuses:

--Room was small and got too hot, even with the heat turned off, also no views, but room was quite nicely appointed. Family rooms might be better than my single room was.