I saw this about a year ago and it was fantastic, I liked it so much that I bought one of the Earthsea books from which this mini series was based on, and was let down. It is clear that this mini series was never meant to be true to the book and because of this it is better off.
People can expect a subtle and yet enjoyable family experiance while watching this. The acting isn't what many would consider great but is a far cry better than what many films these days call acting.
The graphics and special effects are on par with other fantasy classics such as the Labyrinth and Willow, and like them Earthsea has turned this into strength rather than a weakness.
To those more in favor of a fast paced action clip, stay away. Earthsea isn't for you. If however you are a fan of Classics like the Labyrinth and Willow, then this is exactly what your looking for.
I give this series nothing less than what it deserves; A 5 star rating.