Great game.
I really enjoyed pretty much everything about it!
Got one riddle wrong though and lost a Talent point. QQ
The only thing that was quiet annoying was that I wasn't able to save my game after I defeated the Shadow Lord... I lost 12lvls and alot of good gear in this process, not that I was going to play more with that character but I find it very annoying when I can't continue after defeating the last boss.
Also the talents is great as long as you stick to one tree, but if you mix them you're getting pretty much immortal, mixing Assassin with Gladiator makes you deal immense damage and at the same time keeping your opponent stunned pretty much all the time.
Conclusion, awesome game but the talents need a minor thought to since you can mix them very easily.