The airline with the best average rating is Qatar Airways with 8.3/10.
The average flight time is 6 hours and 26 minutes.More information
Qatar CDG-DOH B777-300 Business Class / Qatar CDG Lounge - this report
Taking a flight to fly a specific aircraft is risky, especially when the reservation is made a year in advance. Overall I've been lucky so I shouldn't complain. Nevertheless the flight was just average. Limited amenities, a lackluster menu and a tired traveler. How much different would Q-suites have been?
So it was disappointing. But, the rest of this expensive ticket would make up for the disappointment.