No, it's just a bizarro question. I've been using it since 2003, and it's stabler than ever, while doing more for the user than ever (new fs, virtualization support, Handover, Continuity, and tons of other stuff besides).
I never got any of that stuff to work reliably before I moved off the Mac completely. It would sometimes work and often not work. Often enough that I wrote both of those features off as simple keynote gimmicks.