General Discussion

I have a centauri carbon, I really like it. I haven't printed ppa-cf specifically, but it's always put out good quality prints and it should be capable of ppa-cf. One of the downsides is it has a proprietary nozzle, so you have to order replacements/other sizes from elegoo. You can't just swap in some generic nozzle. And as already mentioned, it doesn't have a heated chamber. If that's a feature you want I'd probably go with the Q2. There's been a lot of crying on the elegoo subreddits lately because they pushed back the NA/EU release of their ams while also releasing a CC2 with an ams in China, and they haven't really made a solid public statement on that yet outside of some emails to individual customers. But you shouldn't be buying something based on the promise of future features anyways. If you want multicolor printing now go with the Q2. If you don't care or want to gamble on maybe getting it or not for who knows how much extra money the centauri carbon is fine.