I also just recently "got" into the A-10C after having it sit around my HDD (now Steam account) for ages. I used the F-15C "module" to get immersed in DCS World, then bit the bullet to set up my
HOTAS (G940, so it was an awkward process) correctly, and got started on the A-10C.
I must say I thought it would be a lot harder, but thanks to some excellent tutorial videos (especially by Bunyap) it took me around 10 evenings to be able to do all the major stuff with it.