Has anyone heard about "The Vampire Diaries" coming out on the CW in the fall? Will it be good or bad?

I saw some clip or ad for it and was wondering if anyone had heard whether or not it's good - I'm in love with True Blood on HBO and I'm sure it won't be as graphic as that, but I also loved watching Twilight (after reading the books of course!). Just want to know if anyone thinks it'll be worthwhile.