I stayed there early June for 1 night.
It is a nice airport hotel, although a bit pricey.
As a plat I was upgraded to a club room, which is nothing more than a regular room ( with a bathrobe and some slippers thrown in...) and access to the lounge ( where I didn't go).
Location is very convenient to catch a flight at CDG 2 . If you are leaving from T 1 they have a shuttle bus upon request , and now you can also use the new driverless train that connects all terminals .
Breakfast buffet is quite nice although not spectaculra.
Overall a good experience.
One word of caution though. The female concierge is a ......