I will be trying QR out in the next 2 weeks on CDG-DOH, DOH-TBS and GRU-EZE all in J as part of a very scenic Paris--->NY return that is routed CDG-DOH-TBS-IST-BEY-CAI-ZRH-BCN-GRU-EZE-SCL-JFK on a combination of QR J, TK J, MS Y, LX J, SQ F, AC J, LA J. Very much looking forward to seeing how QR stacks up.