The 787 is absolutely plagued with quality control issues.

In particular, deliveries were stopped for almost two full years from September 2020 to August 2022, with more issues found recently. The Charleston plant is considered the worse one compared to Everett.

https://www.seattletimes.com/business/boeing-aerospace/boein...

Production of the 787 was consolidated in South Carolina in 2021.

https://www.heraldnet.com/business/last-everett-built-boeing...

The 787's record is somewhat less than impeccable if you consider the multiple lithium-ion battery fires: https://en.wikipedia.org/wiki/2013_Boeing_787_Dreamliner_gro...

Hard disagree on most comfortable long distance aircraft.

It's one of them, but not the only (and I'd argue not the most). The A350 beats it for me, plus, it doesn't have that pesky range issue that is causing Europe to Asia carriers to adopt the A350 (detours around Ukrainian and Russian air space).

“Impeccable” is doing a lot of work there! The maiden flight was 2 years late, a series of failures caused the first delivery to take another 2 years, fractures were found in wings… I could go on, this article has a timeline of just the things which went wrong up to 2014: https://www.ibtimes.com/boeing-787-complete-timeline-dreamli...

> the relatively recent Boeing 787 has an impeccable track record

It was also grounded for a period.