Obviously it's not going to be practical to provide sound files for 200 pages worth of product reviews*, but where you have a product that seems to be unique on the market, and is performing a less-than-obvious process, this feels like a prime candidate for some supporting audio files.
Mind you, i think my bank balance is secretly glad the Gullfoss is Mac only anyway.
*and equally some stuff doesn't need it - audio samples of your database anyone?
