I think it's a good idea, I added chords to my keyboard with zmk and I found it more comfortable and accurate than the CC with its multi direction contortions.
I use MessagEase on my phone so if it gets anywhere near that comfort it's worth it I think. It does take a good while to get used to it though. The chording is amazing but if you already have a great device you are comfortable with you might have a better time with the CCX.
I'm still very much getting used to it, didn't use it enough yet to give a good opinion about it... I think the idea is great, execution could probably be better but a lot of it is being worked on in the firmware already.