Okay, if you've read the reviews and the comments, and seen the user rating, you probably are wanting to avoid this movie at all costs. But before you decide, I strongly suggest you read this. First off, many of the negative critiques have a lot of validity. This is indeed a flawed film. It however has become very popular to bash this film. Many of the more outrageous complaints about it seem to have more to do with the fact that many people seem to jump on a bandwagon, and not only deem this movie sub-par, but utterly awful. Here are the things that are indeed true. First, the movie doesn't really stick to a central message about Christmas, and how the characters should handle the bullying by their neighbors. Second, Jamie Lee is way over the top throughout most of the movie. She does seem to do a little too much screaming. Third, many of the jokes are indeed predictable, and might be rehashes of things you may have already seen. And finally, there is a real believability gap in many of the events that take place.
But there are definitely some redeeming factors as well. First, this is a family friendly film. I can't see anyone but the most extreme fundamentalist being offended. If you don't mind somewhat predictable, or exaggerated humor, there are a few fairly good laughs throughout. Also, although the message gets very muddled, it does end with a strong comment about selfishness and selflessness, providing a sappy, but feel good ending. (if you don't choke on the sugar coating.
Do I highly recommend this movie. Nope. But if you don't mind clean, sappy, family friendly humor, by all means go. I really think a lot of the truly nasty reviews stem more from a cinical and jaded perspective, as well as a tendency to jump on the bandwagon, than the actual quality of the movie.