I saw it. Pretty good, albeit not perfect.
Visuals and style are the best quality. Eloquence was there but not as good as it could be (I guess Spartans are laconic, hehe, pun intended). Being a comics adaptation makes certain scenes really good, others not so much. I felt it would have been better if it were about 15 min shorter by tightening the exposition a bit. Historical accuracy is necessarily sacrificed (Artemisium, Themistocles, Salamis) for artistic improvement, but not too badly.
From a perspective of political connotations, I did not see Xerxes being made Bush, more like Dems and "anti-war" crowd being the priests and the corrupt politician. Then again, eye of the beholder...