Hello Scott
All Wersi OAS instruments (Computer systems and software built in to an arranger keyboard) have been played live all over the world for the last 6 years, with no problems.
Also at the Festivals they are left on all day, and played by all sorts of players, with no problems.
Or to put it another way, they are as stable as any hardware arranger, (Even these sometimes crash, and need to be restarted) but without the limitations.
Hope this helps.

Bill