I'm severely annoyed by their behavior, but nothing specific seems to jump to mind that would make it a BAD release, more than any other release I've had. Yes, changes... yes I'm frustrated that they don't devote their energies to more quality, than speed...
But as usual, there are new tools, some I love, some I like, some I will probably grow to be indifferent to.
I had actually read about less crashing, but who knows... I won't know until I try it in my specific environment. That seems to be an issue specific to each person.
I got to open the beta and play a few times, but nothing of note. I'm still waiting on my shipment.