Heh, I think that liking / disliking this mockup in the end depends on personal tastes and bias towards certain aestethics. And it also might be the case when looking at people who love or hate Synchron Strings.
Because what I hear in this mockup sounds fake. I would never think that this is live performance. It's too sterile, to clean, too dead - sometimes I see term 'analytical' to describe things like that. Samples sound perfect, but machine like perfect, not human-like flawed perfection.
So what I hear in this mockup are machines playing cool piece of music and trying to trick me they are not machines. Fortunately they are failing. Just my two cents.
Although the shorts indeed sound great on its own :)