A few more thoughts:
I like the crafting system, a lot. Harvesting unwanted magic items into essences is fun. Usually I find crafting a bit of a chore, but upgrading craftsmen and making it more of a trading minigame is cool.
You need to get up to level 10 or so before there is enough tactical flexibility to really enjoy combat - the barbarian now has the ability to leap into combat, make some interesting multi-opponent strikes then use a sort of spirit hammer to finish the mobs off. Leaping into mobs made up of elite enemies and bosses is great.
The dynamic environment will be more fun at higher difficulties, luring mobs into areas where you can collapse a wall or drop a chandelier on them for example, or possibly for non-melee characters it's already useful.
There's more to this game than meets the eye, lots of polished little details you find as you go along.