Nice! Always wanted one of those, but I didn"t really have a valid need for one, having several acoustics already and plenty of keyboards.
In Blue Rodeo we have a rock drummer, pedal steel, sometimes 3 guitars, and a bass through an SVT. Even with all of the amps in isolation cabinets, our FOH engineer and I had trouble getting my acoustic accordion to sit right. Didin"t matter how nice the mics were, acoustic instruments can only be pushed so far over a dense noise floor...Then someone hipped me to the roland, and just like that all of my problems went away. FOH engineer can just ride the fader up/down like he would any line level keys. Godsend. It"s also nice to be able to dial up hundreds of different reed sets, concertinas, they even have a corodovox set!