Love this game. I love RPGs and have been thoroughly unsatisfied with several of the existing subpar action-RPGs that are somewhat deficient in the storyline and dialogue. This one rocks with the skill tree, the dialogue, good voice-acting, and leaving out silly quests like "fetch 5 bones, then fetch 10 bones, then 15...".
I just wish the porting wasn't subpar in itself. I love the voice dialogue but it's horribly ruined by only some of it being played and at the wrong time. The menu system is annoying in that it's a bit too easy to make the wrong move.
But, as others have said, those are easily forgettable with the sheer quality of the rest of the game. I'd gladly buy more RPGs that are as good as Crimson Gem Saga. Plus I love watching the intro video every time I start playing.
And I consistently use Spinel thanks to her Level 3 Wind Slash (or whatever it's called). It's a nice cheap way to do damage to clear all the enemies after an ambush.