When it was first conceived, the Dreamliner was a revolutionary concept, but rivals have since done much to catch up.
Grasping the concept and building the beast are two entirely different matters.
When they put me in charge of equipping the future fleet, I'm going to add 5 years to the promised delivery date, as has been shown to be prudent given the experience of the A-380 and B-787.
Congrats to Boeing on seeing this one through and crossing the pond with it.