According to ESRB, this game contains: Language, Mild Fantasy Violence, Sexual Themes
Parents should know that this game is aimed at older players, simply by the nature of the genre which it's in. This game requires a lot of brain power and analytical thinking, along with the need for close attention to detail. It's not going to be attractive or appealing to younger players, so keep this in mind. As far as content, everything hews closely to "teen comedy" standards, so expect some mild innuendo and a smattering of swear words. The violence is very mild, with cartoonish characters hitting other cartoonish characters with oversized weapons. There is no graphic detail, or gore.
SRPG fans would be extremely unwise to let this game pass them by. It shares most of its DNA with Disgaea, and provides an extremely deep and customizable experience. The story has a wealth of humor, and there are a lot of unique touches like the ability to create facilities and ride vehicles. The difficulty curve is better, and the entire game is laid out more clearly than Disgaea was, too. It's simply a great game for fans of the genre.
Deaf and Hard-of-Hearing gamers will have no problems. All of the game's dialogue comes with subtitles, and since combat is a turn-based affair, there is no need to worry about auditory cues or any type of passive environmental awareness. Complete accessibility here, folks.