Since the "difficulty" slider just increases enemy level, it just means you level up faster due to how enemy scaling works. You also end up with a metric butt-ton of money as an added bonus. I like the new content (I'm midway through chapter 2 atm) but the game is putting up zero resistance. Maybe the increased stats on enemies would mean something if I wasn't so over-leveled after a few fights. The previous version had much better balance, likely because there was only one difficulty.