I went through the DVD tonight. No spoilers here. I found myself trying to pick the wrong choices so I could see end sequences, since that was the only way to go "backward" in the story without starting over. Ugh.
The choices seemed rather arbitrary at times. Sometimes you got vital information about a choice after you made it (such as background information).
The acting scenes reminded me of the newer Voltron animated series, where the actors are clearly motion captured (which is good), but it's pretty obvious they are following scripted fighting maneuvers with little real connection to the CG creatures they are fighting.
The graphics themselves, while not at "Final Fantasy" level, are still quite good. I will hazard a guess that the budget wasn't sky high and they had to make due the best they could.
Voice acting was variable - some very good (such as the cleric) and some not so good (Lidda sounded like a teenager in acting school).
It would be cool if you could select a subtitle screen to see what spells were being cast, and other effects.