To be honest, I've never actually used them for their intended purpose. No idea what the comfort or audio quality is like. There's a Pinebuds channel on the Pine64 discord, you can ask questions there :)

Was using them just this morning. I've been using them since they are out. Great device but battery is quite limited, ~2hrs top with ANC on.

I'm also curious. I used to be a big supporter of Pine64 but the e-ink tablet and phone debacles have kinda soured me on them.

Mine have been great. Full disclosure, I deliberately don't use ANC... in fact, I may have installed firmware that doesn't have it. So I can't comment on that. But just as Bluetooth earbuds, they do their job.