Just finished story mode, and am now going back through the levels to try to get all the secrets. The open world puzzles are crazy in amount, so they're going to take me a while.
If there's one complaint I have it's that on PC, the game, like Batman 2, doesn't allow you to invert the y axis in the camera. While this was more of an issue in Batman due to flying, the camera issues in this game still irrritate me at times.
I don't see why they continue to deny people the option.
All that said, I'm going to end up buying the Helm's Deep Lego set.
The Hobbit is rumored to be getting one for 2014
http://www.eurogamer.net/articles/2013-11-22-lego-the-hobbit-video-game-due-out-next-year-report
Its confirmed now
screens in the link