The demo scenes of many of my assets freeze or have a very low fps. Shaders are off. That's as far as I've gotten. Performance is terrible.
Edit: Downloaded the latest patch and it helps a little but still worried--I read that some people had reports of objects just being deleted -- trying the assets I need for my project, including ORK, one by one.
I was going to revert but can't really if I want to take advantage of ORK's new and upcoming features. Have to bite the bullet.
For every asset I want to use in my project that's broken in the latest version of Unity, I'm going to write the developer in a friendly way. So maybe things will get fixed.