Okay, I saw it and I'll freely admit it wasn't as good as the trailer would have led you to believe. That's not to say it's bad, it's just not as good as I'd hoped. And to address the "boring" assessment? It's is definitely not a fast paced, action packed romp.
There was a line early in the movie, which is reinforced throughout the film with additional dialogue, that sets up a humorous twist toward the end. There's a resolution of one character's story that came out of left field (which I saw coming, but admittedly, only seconds before it happened). And finally, there was a group of characters who never interacted with the main group whose story was never resolved.
In the long run, it seems the film could have seen one more pass in editing, but overall, I enjoyed the film. There were a few laugh out loud moments, but the bulk of the humor was dialogue based and warranted little more than a chuckle. I liked the movie, but it fell just short of great.