I've run Utgarde Keep a few times on the Wrath beta using a couple of different characters now, and it's... not bad. I like the atmosphere, the mobs, the visuals and the bosses had decent flavor, but it was hard to take it seriously. It was really, really easy.
I guess that aspect of things is to be expected, it's an entry level dungeon that needs to be balanced for people in full green gear. Still, I wish it was a little more challenging. Even in level 70 blues you can completely brute force your way through the dungeon, slamming your face on your keyboard willy nilly while the bad guys fall over. I don't really want the trash mobs to be terribly difficult, but even in pulls of four and five giant hulking vrykul there's not much reason to use all of that brand new CC some classes are getting.