Im going to be playing this with Wizzeh and Arc when the next beta weekend shows up.
Its a lot of fun so far and I really liked the thief in the last beta, although I wish they would make the pistol/dagger combo more viable... because right now the best combo for him is to go dagger/dagger and dagger/dagger and get a "talent?" (forget what they are called) that gives you bonus damage for switching weapons. And just keep switching over and over, not to bad but its a bit of a exploit.