@icedquinn well... i didnt really used that much the quality modules yet...
I put a ton of materialls in a assembling machine producing some quality modules and used them to produce higher quality modules 2...
i do have something around 10x rare quality modules 2 and used them to create a bunch of stuff like 50 uncommon construction bots
its quite neat tho but i haven't had the need to do much with it except for these

As soon as im able to research the higher qualities, i wana do create some very fast assembling machines to speed up stuff that takes really long to make