Overall, it's great. The demo is a really good indicative of what to expect, I'll post longer impressions later.
Normal is cakewalk, easier than DmC even. You have items that restore your health automatically, and they
abound. Hell, bosses routinely drop health items! It's really hard to die.
8-10 of those continues were due to a shitty set-piece in the prologue and the actual final boss.
I think I legit died once during the game. I'm playing hard right now and I don't see any difference. In fact I just perfected the bladewolf with the pole-arm. Unfortunately, no other difficulties were unlocked by beating the game on normal. I guess I could use the konami code but I'll stick around for a while longer.