Not that you hadn’t already guessed but SHAMWOW! is well, a bit of a sham.
See video here.
Does it pick up more water than a a towel of the same size? Yes.
Does it do the trick with the pop on the carpet? No.
My brother and I decided to experiment. A can of Pepsi was dumped (notice the use of passive voice) onto a piece of carpet and given a few seconds to soak in. Without pressing there was little result. With pressing we still had stains. It took lots of pressing and some AWESOME! (best carpet cleaner ever — it got out the blueberry juice we spilled on the off-white carpet the other day) to get it all out. Careful what you buy from a crazy guy on TV.