This show goes both ways.
I personally love this show. It has great actors and has an intiguing storyline every episode. The downside is, is does give teens some bad examples.
Neptune, California is a have vs. have-nots environment. The rich (09'ers) are constantly berating those lesser than them. Inapropriate language is sprinkled throughout the show (1-2 every episode). References to drug use or alchol are relatively common. There is a lot of talk about sex and infedelity because of the Mars's family business (private investigation).
Although this show has lightened up in the second season, it still is not appropriate for most teens.