Well, after seeing the videos, I think they are really interesting. Nice variety of sounds from each module, compact format, battery powered.
Of course these are targeted at keyboard players, not at DAW users. And I think that those are really interesting for a keyboard player, expecially because they sound good, they are portable, the keyboard is playable, they are battery powered. Which basically it means you can play anywhere you want to play... but if you doesn't know how to play... they are pretty useless.