I played it and completed it. It feels a lot like Diablo but in some pretty nice graphics. There are a lot of weapons and spells, etc, too. Oh and you ride on a dragon, which let's face it, always deserves a thumbs up!
It's pretty easy but definately worth a try. It lasts about 12 - 15 hours to complete, but has some decent replayability, since you can go through trying out the different weapons and spells. There are also a few sidequests.
If you don't want to buy it, it's definatelly worth a rent...