There's a patch coming out next week, if it it is not already which makes it easier to remap your key-bindings for this game.
Here's link to the Obsidian blog:
http://blog.obsidian.net/2011/06/30/dungeon-siege-iii-patch-keybinding-and-move-leftright/Here's a quote:
Move Left and Right: In addition, we’ve added two new controls that will allow you to move left or right (think strafing.) For example, if you’d rather have A and D on your keyboard move your character left and right respectively instead of rotate the camera, you’ll now be able to set that as well.
Reviews for this game have been all the place, ranging from , I think 3 or 4/10 to 8.5/10 or higher even. Most of them seem to land in the range between 6-8 or there-abouts.
Luckily, there's a demo out for DS3 you can try if you're in doubt if the pc version is for you.