Well, I bought and gigged this pedal. It actually worked very well and was convincing. I have a video but the audio is so poor its not worth posting. Definitely the way to go for the occasional talk box effect. The "no moving parts" technology that is used to create the sweep as you move the pedal works very well and there is virtually no detectable lag (which I was initially afraid of). It is a very well built, heavy, and solid pedal.
However, some negative things about it: The onboard fuzz sounds very thin, I turned that off. I don't like how the on off light is under your foot (though it is cool how the large logo glows red when activated). The entire pedal needs to be on a base because it was sliding around the stage floor. I was constantly straightening the pedal in front of me. I have read that a base may be coming out so you will be able to perrmanently attach it to a board. The base/cradle will remain attached and you'll be able to pull the pedal off of the base.
For the price and the convenience of not having to set up a tube and another mic, it is well worth it.