The movie can feel offensive to those who easily get offended (one must remember - feeling 'offended' is a manifestation of one's own insecurities). If you watch this movie with an open mind, you'll have a good time.
The Bad: As is the case with most Japanese comedy (anime or otherwise), some jokes don't translate well into English. This is important to note since this movie is basically a light-hearted comedy.
The animation could've been better too - the movie has way too many still shots with background narration - at times it feels like less of a movie and more of a slideshow.