Online demos are NOT a reasonable representation of what the sound quality truly is unless of course you are auditioning a full bit WAV or AIFF file. Unfortunately most demos are low grade MP3's which can mask much of the overtones, resonance, and subtle articulations in a sound that can separate it from the pack.

VST capable instruments such as Wersi can offer a sound palette that no embedded instrument can. There is a great advantage to using a Wersi, Mediaststation, or Neko but it seems many people on this forum choose to disregard these offerings altogether having never tried one of these instruments in person.

I make the offer for anyone who wants to make the trek to come by and audition my Wersi Abacus Duo Pro in person and base your opinions on fact rather than conjecture. I'll bet few if any would walk away with a low opinion of the Wersi after using it first hand. I'm not far from Sacramento, CA for anyone who wants to come by.