I have owned the top arrangers from Yamaha, Korg, and Technics but wasn't overly thrilled with them. I most likely would have bought another Technics had they come out with a KN8000 but alas Technics ceased to make a follow up so my search for a new arranger was on.

I'd heard of Wersi online and did extensive research on them. On paper the Wersi looked like it had everything I had hoped for and after talking with several Wersi owners who were all ecstatic with their instruments, I took the plunge and bought an Abacus Duo Pro having never heard one in person. When I first received my Abacus I was amazed just how much better it sounded than any other arranger I had ever heard. With each OS update it only got better and better and exceeded any other manufacturers offerings. To this day I've yet to find the rival to Wersi but if and when that time comes, I'm certain I'll jump ship. For now I don't expect that to happen in the near future.