Well, it works just like a charm for me here..
i am running C5 in a dual opteron system with tyan board, Windows XP sp3.
The Goods:
Variaudio, which surprise me a lot since i am a melodyne user, sound is good, operate flawlessly .
Loopmash, really cooooool stuff, it eat up your cpu power quick, but it worths.
Beat designer, quite useful, especially work as a "midi plugin", got few "pattern slot" that can store up your pattern, works like BFD.
New VErb, Lovely, way better then other DAW supplier bundled Verb.
The Bads:
VST expression, the big reason i got this update so soon. It ONLY works great in the "DEMO" project, HOWEVER, still never heard anyone who able to use that with different MIDI channel OR different MIDI port/Program .. WTF , Is that a "BUG" or a "TRICK" ?? is just NOT work as it saids ! Just not working at all to be honest
Media Bay, Forget it unless you are a heavy Steniberg products user
Overall, i am impressed with the new features as they really start form the stand point of a composer/music writer, Just please PLEASE release the update sooner for those known BUG ...