The big problem with these new acrylics is each brand requires their own support system. Some hand brush well, some do not, some require additives for thinning, flow enhancers, retarders, etc. some do not. And there does not seem to be much interoperational capability with these various brands.
These paint folks need to remember the K.I.S.S. principle. If a paint brand requires all sorts of additional steps and additives to get best results, I’m gonna pass.