I'm totally at a loss as to why people are claiming it's incredibly easy. The 2nd half of Act 1, up to where I am now (first quarter of Act II), is significantly harder than in Diablo 2. The health orbs are no substitute for spamming potions (which is impossible now, with at least a 15-second cooldown), as they only spawn on a minority of kills after the early levels and only seem to activate if you actually move near them (even if you're essentially standing right where they spawned). Playing as a barbarian, there are regular enemies who take off something like 15% of my health per "charged" hit, which is dodgeable in an ideal scenario, but not really A: when you're surrounded, and B: have to deal with latency - which was definitely an issue, even on a 100% "green" connection throughout my experience. They're really just refills between fights, as opposed to something that you can realistically make tactical use of during combat (though a couple of the major bosses I've faced so far are built around slaughtering a bunch of trash mobs to replenish hp/energy).