I saw this in Friday and thought it was ok. I felt that a lot if e really funny parts were in the previews, and that it tried too hard to be like a Hangover for the female demographic. I loved Melissa McCarthy's character, she's a great actress, but overall I wasn't as impressed with the movie as I was hoping I would be.
ETA, $hit, I didn't know that this was Jill Claybourg's final film. She died in 2010 from Chronic Lymphocytic leukemia. I used to love her on Dirty Sexy Money, and I also really liked her in this role as Annie's mother. So sad!