I’ve got the chromatic modules and what I’ll say is that they’re pretty decent except that I don’t much care for the Eudemonia filter. It doesn’t have much character in my opinion. In my setup now I’m much more enjoying the sounds of 2 hysterias through a ring mod and low pass gate. To my ears that setup sounds much better and more interesting than the same two VCOs into the Eudemonia with the Ataxia modulating the filter cutoff and vca. For the same price you could get a Typhon which sounds fabulous and does a lot more. In short, I would look into alternatives for the filter/vca.
For your second setup, plaits is a very robust module and it is going to give you a very different experience than a pretty basic analog vco. You can approximate that setup in vcv rack so I would try it there.