To me this game looks really amazing, it's doing a lot of things differently and it isn't just some Diablo clone. The passive skill tree is just amazing and the way that they handled skills by making them gems you attatch to weapons is interesting as well. Not to mention the game has no currency and vendors use a barter system, which is a great way to get rid of money which was useless anyway!
I also recommend you all watch this First 40 video, really shows the games shining mechanics:
**Sorry I don't know how to do clickable links, just copy and paste.