The demo is out and I tried it today. Doesn't seem like it'll replace Titan Quest/Diablo II for me...even after turning down the voices all the way ("Aieeeeeee!"), I was having issues with the interface--am I blind or is there no slot for weapons? I could switch them out by right clicking on new weapons, but I like to compare stats and stuff. Looting was weird too...what key shows you the loot names before you pick stuff up? It's all concentrated in one pile and I couldn't find a way to see all of it before picking it up. Granted, that all could be on my end...if so, let me know! Above all, combat wasn't too satisfying and felt kinda floaty. The animation is awkward too. Doesn't seem like a day 1 game for me.
Lastly, even on high, it was still jittery and below 60fps...I have 2gb ram, 8800gts 512, E6750 overclocked to 3.04ghz, and I'm running it at 1440x900.