I agree that it is a nice sounding digital filter and the ability to put a plug out into the synth is Very good idea, means you can get a lot of different soft synths (hopefully at a cheapish price) and not be glued to your pc.
Hopefully this will be a success and Roland will continue to work with the idea. In a few years we will hopefully see a similar concept in serious poly form.
Looks like you can only install one plug out in the board at a time? If that is the case, it would be a shame.
Good to see Roland returning to their roots as innovators.