Speaking for myself, as a Public Beta program participant, I will likely stay away from iOS 10.0, Beta 1 and maybe Beta 2. That's probably the most risk filled time for users, especially for your daily driver (I know, I know...). That said, unless something serious surfaces pre-GM, I will definitely download the release version of 10.0 on release day. I am not going to sacrifice the features offered by a new (and possibly very changed) OS because frames get dropped in CC or Siri blows up when you rub your head and pat your tummy. That's called throwing the baby out with the bath water. I am willing to accept that the OS may not be up to its full potential at launch time but I will take that chance because I want to use whatever new features Apple has planned.
You may think differently and you're entitled to do so.
You may think differently and you're entitled to do so.