I would be happy to learn a brand new OS, IF it did everything that is good from the one I already use, but it always seems to be that for every step forward, there's one step back. To many things that Yamaha do awkwardly for a Roland guy to like, and too many things that Roland do awkwardly for a Yamaha guy to accept, I guess.
I just wish more of them would simply rip off the other guy's good ideas, and incorporate them into their OS, but some of them (all of 'em, really
) stubbornly cling to some of the most outrageous clunker OS ideas (Roland included!) when other manufacturers have clearly shown the way...
Bottom line is, there isn't an arranger out there anywhere that couldn't be improved by a feature from a different manufacturer, if only they could get over themselves