The rumor I had read here on the Dis was Stitch would be closed down starting in January for a rehab. As far as I know this has not happened yet. It will be interesting to see if it does.
SGE is suppose to be pre-Lilo, when he was Experiment 626. Too bad they (and even Stitch) refers to 626 as Stitch.
It is slow, but not horrible. The times I have seen SGE, guests are leaving smiling and laughing. Yet I read nothing but bad about it.
SGE is not worth waiting in a long line. But is worth experiencing at least once on a trip.