You'll find a lot of former QS pilots here. None of us regret leaving.
The junior FO line holder in LAS is a September 2019 hire.
The junior CA line holder in LAS is a October 2014 hire.
I haven't run the numbers on future upgrades. 144 airplanes now, 49 more deliveries, an order for another 100, options for another 50, and seeking another 20-25 on the used airplane market.