I took my daughter to the opening night of Shrek the Musical last night at the Toronto Centre for the Arts. She's seven, and she loved every minute of it. Heck, I should have had her write this review, because I'm not sure it matters what I thought.
From an adult's perspective, it was pretty decent. The dragon was very cool, Lord Farquad played on his knees was great, and if a song ever got boring, I just looked to my left and watched Michelle having a blast.
John Gallagher was sitting behind me, and he brought his wife. I'm thinking this is a show you want to bring your kids to, or at least a nephew or niece you have lying around. It was absolutely perfect for my seven year old, but I wouldn't have wanted to go alone.