OKay.. got this the other day and started playing it. I reckon I've come to the same conclusions as other people.
GFX engine sucks. Looks pretty but performance is dire. Here's hoping they make one of their patches an overhaul of the underlying engine. Unlikely I know, but still one can but hope. What on earth were they play testing it on? SLI'd 7900GTXs?
Gameplay - Pretty much what I've always loved in an RPG, good balance of fighting, quest and character development at the moment. I've done my usual and gone down the Monk's route, just prestiged to a Shadowdancer though I'm umming and ahhing whether that is particularly suited to my style. It'll work for now though. Flurry of Blows + Gloves of Yellow Rose + Circle Kick = lots of hits on multiple targets

. Khelgar has a tasty Mace that does fire damage, and his Giant Cleave is knocking out enemies left right and centre too

I'm really not happy with the AI for the druid. She's got a lot of decent spells memorised but hardly ever uses them instead seems to prefer to polymorph and fight.
It never seems to occur to her that healing spells are just as nice used on other people as on herself.
What is surprising me at the moment is how easy this game is on normal settings. I've only died twice, despite numerous fights. I know I'm good at RPGs, but not that good. Next time I roll a character I'm taking it up a difficulty notch.