Stitch live is fantastic.
If I had to raise one issue with it, it would be that it's very heavily scripted, so once you've seen it, you know what's going to happen.
I wish they'd included an opportunity to ask Stitch some questions, to really show off the interactivity of the show.
But that's only a slight issue - it's still fantastic, especially the first time when you don't know what's going to happen.