The Mediastation does support far more VST's at once than the Wersi but the major advantages the Wersi has out of the box are the great factory sounds and more intuitive user interface. The Wersi comes standard with over 700 fantastic sounds ranging from Piano, Organ, Strings, Guitars, Flutes, Brass, Drums, and much more. In fact, if one purchases the additional Wersi OAS Piano, Organ, and Synthesizer sound banks the number of stock sounds increases to over 1300 sounds (this does not include any VST sounds). The Wersi factory sounds are high quality multisampled, multilayered sounds with incredible detail that only GIGA or Kontakt files can compete with. Then take into fact the Wersi does support four VST's as well as analog modeling, FM, and wavetable synthesis and you can get an understanding of what a powerhouse this keyboard truly is.

Don't get me wrong... The Mediastation is a great instrument and I'm by no means knocking it. Wersi has just devised a much simpler interface and has more and better factory sounds than any arranger/workstation I've heard to date. Even the Korg Oasys doesn't have acoustic sounds that match the Wersi. Only the Oasys synth sounds are better which is what makes the Oasys unique, its synth and KARMA capabilities. The Oasys seriously lacks in the sequencer, audio recorder, and it does not currently support any VST's.

Over the last year I've seen the Mediastation improve dramatically with each OS update and the newest 1.2 ISO makes the Mediastation so much easier to use but it can still be better. Lionstracs is definitely moving in the right direction by adding new GIGA sounds and improving the GUI. I'm sure you know this already but look and listen to what the competition has to offer and strive to exceed what they do. Sometimes less is more and the phrase "keep it simple stupid" definitely applies.

Lionstracs already has the most open ended platform of any software based keyboard available today. All you need to do now is fine tune it, add some more sounds, and then watch out World! If Lionstracs gets it done fast enough you'll have such a major jump on Roland, Yamaha, and others who will certainly be coming out with an open ended keyboard soon they'll never catch up. That's what Wersi has done by having OAS out almost 7 years ago!