I would have happily ranked this as a Gold level app, but I can't honestly do so until I've tested it far more extensively.
However, some things I can comment on:
CC2 in Crossover is way faster than on Windows, even considering the fact that my Windows session runs in an emulated environment. For example, when browsing the symbol catalogs, redraw on Windows is quick, but noticeable, taking an average of 3/4 second to refresh the whole screen. When running under Crossover there is no noticeable redraw delay; pages of the symbol catalog come up seemingly instantaneously, even on complex catalogs. Sadly, this probably says more about the overhead imposed by my emulated environment than for any efficiency in Crossover. Regardless, it's nice to finally have the responsiveness I'm supposed to, given that I'm running a 2Ghz AMD64 box ...
Installation is straightforward, although a little tedious, especially since Crossover (I think) insists on "rebooting" after every install; is it possible to change this? I don't remember CC2 and its addons insisting on rebooting when I installed it in Windows.
Finally, I don't know if this makes a difference, but I installed my CC2 into a managed bottle, win98, with IE6 and various related components preinstalled; I also installed the Crossover HTML Engine, although I'm honestly not sure why ...