We stayed at the Sofitel (Terminal 5) for one night as we had an early morning flight the following morning and couldn't connect from my international flight. Check in was fast and the staff were all very friendly but almost robotic. In delivering their "welcome speech" and "departure speech" I noticed that several staff repeated the same statement to the same customers several times.
The hotel still feels fresh and new. The rooms are clean and comfortable. The only thing missing from my stay, being picky here, was the "amenities" found in the bathroom. No toothbrush or comb.
Using AMEX Platinum got me a reduced price, free breakfast and a room upgrade, so well worth the option - though unpublicised. I only got told when I checked-in and presented the card.
The buffet breakfast was good quality and had all the fixings.
A very well priced option if you have an early morning flight.