According to ESRB, this game contains: Blood, Language, Partial Nudity, Violence
Parents should take note that this game is rated Mature. Not only does the game deal almost exclusively in adult content (some profanity, lots of fighting, and a few scantily clad personae—not to mention that personae are summoned by placing a special gun to the character's head and pulling the trigger), it's also probably way too complex in terms of mechanics for younger gamers to be able to progress very far.
RPG fans will want to nab this one now before it becomes rare (which is typical of Atlus games in general and games in this series in particular). This title is a break from the RPG norm, and while it's not perfect, it's definitely something anyone who loves the genre is going to want to play.
Deaf and Hard of Hearing gamers will miss out on the funky soundtrack (which is both good and bad), but should have no concerns otherwise as the game is fully subtitled.