I was searching the internet for reviews on Cymatics and found this topic. (even made an account to reply xD) I got introduced to Cymatics a couple months ago, a friend of mine bought a serum pack and he enjoyed it, but I wasn't impressed at all. Their price is way to high and the quality is good, but not that good. Especially the macro's are a bit poor/simple. However, their marketing is really good and I recentely downloaded some of their free samples, which are of high quality. I really thought they had improved their packs and I ws thinking on buying a pack, but now I see they've stolen some of the samples... it really doesn't surprise me... And I will not buy a single sound of them!
Besides their sounds being ripped, I think their tutorials are even worse.. I know my way around Serum, but watching their Serum tutorials is just funny. Every vid there's at least one moment that shows they really don't know what they're doing.
So for people that hesitate about buying some at Cymatics: Just don't do it.. ADSR is, in my opinion, way better in tutorials (best I've seen so far) and they've great packs. Just check out their best selling packs.