Hmmm. We were having a lot of Premiere issues in our office with the first CC 2014 release. Didn’t play back video, lots of crashes, etc. AE and most of the suite was fine, just not Premiere. With the latest release, all of the problems are basically solved. We still have a few crashes from time to time, but not out of the ordinary and certainly not enough to make it unusable. Specs:
iMac 27″ Late 2012
Intel Core i7 3.4 GHz
8 GB 1600 MHz DDR3
NVIDIA GeForce GTX 680MX 2048 MB
OS X 10.8.5 (12F45)
2 other machines we have are classic Mac Pros, I’m not sure of the exact specs but they are all on OSX 10.8.5, ~16GB RAM and decent video cards. We haven’t upgraded to Yosemite, and will probably hold off on doing so for as long as possible. Right now our workflow is pretty stable and there are no features in Yosemite that make it worth the risk of upgrading.