This is something that I've wanted to see for some time, ever since I stumbled across a recording of "The Internet is for Porn" (the WoW machinima version). When I found out that it was a song in a musical, I was intrigued. When I found out that it was a musical with puppets, I had to see it. Bizarre things like that don't come around very often!
It was a fun show and I'd recommend it, if you like cynical, dark humor. It wasn't the greatest show of all times and the story is nothing overly original, but the songs and show design really sell it.
In fact, it was very interesting to watch the way they handled the puppets. If you haven't seen any pictures, they don't hide the fact that they're puppets with the traditional staging and skirts. It's just the performers walking around with the puppets. But they were performing through the puppets; they would often stand almost still while the puppet was playing out the finer movements of the scene. It worked to draw your eye to the character more effectively than I would've expected.
There were also a couple instances where there were two characters on stage voiced by the same person; one character had a separate, silent, puppeteer. A few scenes also involved a second performer "right-handing" for a character. It was obvious the show was very tightly choreographed as people ducked in and out to take these roles and match hand actions. For someone interested in puppeteering, it was almost a separate show within the show.
And, for those who've seen it and know what I'm referring to, the Bears rock. They stole the show. :D