Decent cast, the writing is ok, and the show didn't make me run away screaming, "This is craaaaap!"
But at the same time, it's not grabbing me from the pilot to make me need to watch more right now.
The characters aren't that special, they're all the usual tropes.
The most interesting thing about the show is the slightly teased mythology, the backstory. THAT is way more interesting to me than anything else on the show, and it was barely touched upon as little more than setup.
Now, these are things I've said about other shows, and over time those grew on me, so I'll stick with Secret Circle for the time being. It has potential, I just don't quite see it manifesting yet.