Did you watch it last night? I did. I enjoyed it enough to want to watch the next episode (which is more than I can say for Defying Gravity). Misfits is a 60-minute dramedy, and the balance was good for the first episode - I hope they can keep it up.
The next section isn't really spoilerific but if you don't want to know anything you better not read it.
I imagine Misfits has been described as Heroes for the UK: Small scale and very real. What we have is a bunch of loser kids on community service for various misdemeanors who find themselves with superpowers after a freak accident.
Note, there are four ways of being super: natural (it's in your genes), freak accident (radioative spider anyone?), gimmicks (Iron Man) and magic (Dr Strange, Juggernaut).
What was interesting from a screenwriting viewpoint is the type of powers the characters have. In Heroes the powers are pretty random but in the Fantastic Four movie the writers linked the abilities gained by each character to what they were doing, or trying to do, at the point they were zapped with gamma rays. (So Reed Richards is trying to reach for something - his ability becomes elasticity.)
In Misfits they have done almost the same thing but from a more writer-ly perspective: all the characters have been given powers related to their external wants - which, in each case, is the opposite of their internal need. (Well, I say "all" but there is one character whose power has not yet been revealed - though we ought to be able to work it out from what we know of his character.)
I think this is a pretty good start, and offers lots of character development opportunities - some of which are already manifesting.
What's on the turntable? "The Long March" by Vangelis from "China"