Diki,

The Wersi doesn't need VSTi's loaded to sound better than other arrangers, the factory sounds already sound great right out of the box. The Wersi has nearly 1 GB of sounds in OAS 7 as standard. That's about 10 times the sound ROM used for any other arranger made today. What that equates to is some phenomenal sounding instruments, especially the orchestral and acoustic instruments. The Wersi also has great synthesis features (FM, Wavetable, Physical Modeling, etc.) and can load samples as well (both 16 and 24 BIT). Listen to any Creamware or Sonic Core sound demo and that's what the Wersi sounds like.

I strongly suggest you audition a Wersi OAS system in person rather than speculate what it sounds like because your assumptions of what it sounds like are way off base. Just because you've heard some MP3 demos that showcase the Wersi organ sounds doesn't mean that's all that it can do. The Wersi factory sounds are already a powerhouse in and of themselves but once you add the ability to utilize VST's and AKAI samples, the sound palette opens up 100 fold. Only the Lionstracs Mediastation offers that kind of versatility but the Mediastation's factory sound set isn't on par with Wersi's. Lionstracs is working on changing that though. Contrary to what you and many others think, the Mediastation's stock sounds are far better than you can imagine. Until you audition one in person, don't be so quick to judge.

I've gone from the best arrangers that Yamaha, Technics, and Korg have to offer and the Wersi easily rivals what I've had prior. I haven't experienced any other arranger to date that has the sounds, features, ease of use, and build quality of the Wersi. It's not likely that Yamaha, Roland, Korg, or Ketron will produce anything that even comes close to the Wersi let alone rivals it. Rest assured if they do, I'll be the first one in line to buy one. I won't hold my breath because that hasn't happened yet.