So far for me Sonar Platinum is definitely more snappy.
I had a fairly large project from X3 that I opened in Platinum and it just plays smoother.
An example is that in X3 when I pushed play it would actually hesitate for a second or two.
Not any more.
Two or three quick notes then I am going back "under the hood" so to speak.
1) The colors in the console and track view appear to be more vivid. And I have less graphic glitches when selecting between console, Addictive Drums, Piano Roll, Step Sequencer etc.
2) The new piano roll is gonna be awesome........hard to explain at this point.
3) The Console is just awesome with the new stacked FX and more Sends visible.
4) Mix Recall, are you kidding me? This is totally incredible. Still trying to completely get this one in my head. But this will be very useful to us all.
Thanks Cake for the early invite!!!!!