I signed up on the Disneyonice site, and the venues. I get emails with the codes now, and also snail mail. I usually go to the show in Trenton NJ, at the end up January or early February. I find this much easier than trying to see other ones that fall around Thanksgiving or in December (I work retail).
In Trenton, I would call this a 2nd tier type venue, and we do not get the newest shows, we are not seeing the Frozen one for example. We will see Princesses and Heroes (I think the Frozen characters will appear along with others). The major plus side is cheaper parking, and cheaper tickets.
We really enjoy it and it breaks up the long winter a bit.