I wasn't really expecting the demo to work for me, my computer is too old, but it went fine (even if a bit slow) for two minutes. Two minutes!
I could zoom in, click on a few provinces in the USA/Canada, put the political map on, look on Texas, then zoom out, cross the Atlantic, have a short peek at Europe, and then.. back to reality, it crashed. I didn't even had the time to unpause.
So well, I'll have to wait 2-3 months for new computer, now that I cant really play. But everything will come in due time, and by then there will probably be one or two patches making this splendid game even better. So thank you Paradox or this new game, I only wish I had the infrastructure to run it.

(And this is no critic, this is entirely my problem)