Late to the party, I know, I don't care.
Obviously I'm still correct that the GFX are technically inferior to Path Of Exile, textures, lighting, zoom level etc. And Bal is right that POE does ARPG uber-geeking gameplay better.
BUT. Actually D3 is really nice. Although the style is a bit more cartoony and low-res, it does a hell of a lot with the atmosphere, backgrounds, and setting, it actually feels more like a proper place than a game place, and some of the areas are just damn cool. The expansion pack might be my favourite so far:
http://1.bp.blogspot.com/-Zm31z1oGKOc/VoZV1bY9efI/AAAAAAAAAfQ/w9Iknnm2nRk/s1600/diablo3kindapretty.jpg
As people said above, gameplay in the main game is supercasual, even without using gems and shields there doesn't seem to be a way to get an actual challenge in the main game, however it is quite nice being just to waltz through it using just mouse and leaving other hand for wanking to cow scat pron.
Story is terrible and generic but at least it is comprehensible compared to POE.
Destructible items in environment are cool. I spend more time exploding crates carts and altars than actual enemy.
So, errr, yeah.