Hello!
I've applied CU2 into a client's test environment. There are significant changes in this patch, so I'd recommend installing it in a test environment soon if you plan on moving to it in the near future.
I've worked with a few clients to test SCA and determine if it fits their needs, however, none have yet decided to test CU2 and determine whether it performs significantly better than past releases. I know SCA was a focus in CU2, but unfortunately don't have any empirical data on the improvements.
Let me know if you hear anything!!
--Chris