Beautiful
The game is beautiful, the music is nice and there is the song by Blind Guardian playing during the credits at the end.
But it's short, has very little replayability and it's so focused on the main plot that it can feel rather linear.
I haven't read the book but it's pretty standard fantasy fare if you're familiar with the classics and are a fan of RPGs. The story does have its moments and things pick up near the end but it may sound a bit too generic depending on your background.
RPG elements are limited to a few skill choices and decisions that play out like a choose your own adventure gamebook. You don't get to create your own character but the main character in this game is likeable and the voice acting is pretty good.
The main issue is the combat which plays pretty much like an RTS game. It's a bit messy and your guys are always facing overwhelming odds. Don't get me wrong, it does contribute to the epic dimension of these fights but it also gets old pretty quickly especially considering that you have to micromanage your party (of up to four characters) because if they're left to their own devices they never use their special abilities. If you want a more hands off approach then you will need to lower the difficulty and even then you will probably have to babysit your guys and gals and swicth around between characters every five seconds to activate their abilities.
It's not a game that I would recommend to people who may feel jaded about high fantasy and stories about dwarves and elves and considering its length you may want to wait for a sale but if you like the little bearded fellows and want to experience a short tale (probably around 8 hours of gameplay) then you could do worse.