Nothing in particular, I just didn't want to see it. Her character never made me want to learn more about her. Captain Jack has enough mystery about him and his past that part of you will watch whatever he's in just for the chance to find out more about it.
I get the feeling that the only good thing on SJA will be K9 (assuming I did see K9 on the trailers).
I can't wait to see
The Tyler's (and Mickey) Time - a series of 13 half-hour shows, showing how Rose Tyler and her family (and Mickey) travel around Earth*, stopping all roots of evil and destruction as they form their own version of the Torchwood Institude.
*of their universe