There's actually some good demos on YouTube showing what it can do, and it's limitations, rather than fancy demos by the manufacturer.
I found one using the preloaded strings section and was impressed. I like the way you can slide your finger around the pad to change vibrato, intensity and the tone of the strings, the cutoff just emphasises the top end of the strings giving them a nice swell, and it transitions nicely between chords when you change pad.