I've been getting this a lot too. Its really annoying. It happens mostly when entering or leaving Divinity's Reach.First, I got the downloadable version and that went well. No problem getting the game up and running. The problem has been with frequent game crashes. The game crashes most frequently when I go through portals.
Your first impressions are quite similar to mine. I love the art style of this game (after well over 8 years of the cartoonish, exagerated style of Warcraft (And I Don't mean just wow, but Warcraft 1 2 and 3) playing a game with a more realistic look is a welcome change. SWTOR can't really count because while the scenery looks amazing, the character models SUUUUUUUUUUUUUCK)
And I'm having a hard time liking the dynamic events (since most of them are without any context. "HEEEEEEEEELP WE'RE UNDER ATTACK BY CENTAURS" doesn't do much for storytelling)