Ok, I'm late to the table, but I've got a couple of things.
The models are gorgeous. Moving on.
Any resin army, I think is a showcase army. My plan, if I ever do decide to "invest" in these models, is to do so one squad or model at a time. I'm not in a big rush to buy all the models for a 1500 point army in the period of a few months.
As a dedicated painter, and less of a gamer, I would like to use my Vallejo military colors on these guys. I painted a lot of Flames of War stuff for a commision, and have done a fair share of real military figures and models, and still have some of those German greys and greens. I would probably use pastels for dirt and weathering on the boots and uniforms.
Also, I'm worried about those bayonets. Resin is snappy.
Still, seeing these guys painted...plus the sculpting is so dynamic, it ranks right up there with "serious" historical stuff.
Heavy stubber weapons teams....yes!
I would guess demand for these models is high. And I think keeping them a resin army is a good idea for two reasons...more exclusive, and better detail than plastic, although marginally.