My int-based mage found it sufficiently challenging, but MAN, did my 2-handed Warrior have a good time. I only put 1 or 3 points into Life Leech, but the huge bonuses to Life leech and Regenerate from the set items gave me a seriously huge regeneration rate, 1.5% - and when your health is over 1000, that's 15 HP a second. Enemies couldn't hurt me fast enough. Giving them more damage wouldn;t help because that would crush my mage, and nerfing the regen rate would.
I had maxed out all useful skills and I was cleaving through enemies with ease using a two-handed sword. I can't imagine how much easier it'd be with dual-wielding.
I used the set items, and the bonuses they offered were HUGE and worthwhile - so worthwhile that I'm planing to make a character that never uses set items.
