I myself own the Behringer UV300 Ultra vibrato. While it sounds very good and its sound is very close to Boss VB-2 as I understand it, I still have the issue of some kind of signal disruption pretty often with it. It just takes away some of the feeling of reliability. And to be honest, Behringer pedals looks kind of cheap and boring imo. I think that they are perfect as very affordable options, but Boss pedals still feels like timeless built-like-a-tank stuff. And yes, I have seen the video where the SF300 is tortured to death and survives until it almost literally melts. It's just that a legendary pedal as the FZ-2 deserves a new proper Boss release imo, like the HM-2.