A lot of people have been putting this show down, and I'd like to set the record straight. For those who don't know, the show is about the X-men when they were teenagers. The creators probably thought that by making them younger, they could appeal to a younger audience (it's survived 3 years up to this point, so who's to say they were wrong?). And for the most part, this angered X-men "purists", who argued that the series butchered their favorite characters, and that this was an insult to "true" fans. Get over yourselves.
I'll admit, the first season was pretty dull. The writers spent the majority of time introducing new characters (a necessity for a show with such a large, diverse cast). They couldn't develop individual characters very much, or put them into the complex story arcs that the comics are famous for.
But that all changed with season two. Unfortunately, by that time, most older fans had already given up on the series and are missing out on some great stuff. The story has evolved (no pun intended) over the years, and now we're beginning to see some of the classic X-men arcs. With the escalated aggression of Magneto, the rising tension between humans and mutants, and the emergence of Apocalypse, I feel that the series has reached a turning point. The writers are able to explore complex issues such as prejudice and tolerance, while still presenting it from a kid's-eye view. They've reached a new depth that they're now just starting to explore. So give it a shot. Just because these X-men aren't exactly what you're used to isn't necessarily a bad thing. Heck, if they were just going to copy what came before, there would really be no sense in making a new series in the first place.