I’ve heard very positive things about pcbway. I use JLCPCB regularly for fab and assembly. Most issues I’ve had come down to misunderstandings due to problems in their web order PCB viewer, which can be slightly janky. I have however learned to use it properly and I don’t have that type of error anymore.

As far as PCB fab or PCBA quality issues, I’m unable to think of any problems I’ve had across 15+ orders over the last three years. I just got another two PCBA jobs back in the last couple weeks and they were great.

I’m honestly in awe of what JLCPCB does and it’s a big inspiration to me for how much better things could be in the USA if we were committed to manufacturing.