I've been a professional pilot for 38 years (this year) and I'd hop into the back of a B787 and fly it anywhere in the world without one tidbit of worry or concern.
I'd just enjoy the nice cabin pressure differential, quiet ride and watching the 'plastic' wings flex during any turbulent air. (Sorry about the word plastic....we all know this is not the case).
It's gonna' be a great flying machine.....history will prove this. And NO I don't work for Boeing.
Fly safe my friends
