Why would Wersi reinvent themselves when they already have the most advanced arranger/workstation available today? The factory sounds are as good as any TOTL arranger available today and in most cases better. If the factory sounds don't thrill you by all means load in some AKAI sounds, a few VST's, or sample some new sounds. You aren't stuck with the factory sounds, that's the entire point of an open ended instrument.

I also don't understand your comment about Wersi being poorly manufactured. Have you played an OAS instrument in person? I have an Abacus Duo Pro and if this is what you call poor build quality then the Yamaha's and Korg's are complete junk. Roland does have nice build quality on many of its higher end products although definitely not on par with the Wersi.

As for Roland and Yamaha having "more up to date features and voicing" I'd like for you to expound on that. Can either of these instruments load multi gigabyte third party samples or utilize VST's? Do either of them have the extensive real time controls the Wersi has? My Wersi has no less than 30 programmable sliders, about a hundred programmable buttons, and a touch screen with additional programmable features. This doesn't even include the pedal board or foot switches you can also program. That's hardly what I'd call short on features or "out of date". Perhaps you should know the instrument you are bashing before doing so.

So you've heard some poorly recorded demos here and there and that person happened to be playing a Wersi. I can't count the number of times I've heard poorly recorded demos online with people playing various brands of instruments but I don't blame the instrument for that. If someone can't play or they don't know how to properly engineer and produce a recording that's not the fault of the instrument or the manufacturer of that instrument.