With the RGB I prefer it to the old ACX cooler... the old ACX cooler looks like a slab of plastic. Did not like the new cooler when I first saw it, but with the lighting it looks good.... not that I can see it anyway as I have no window, but if I had a window I think it looks nice with the RGB lighting.
I hope that the new ACX 3.0 cooler is physically better than the old ACX 2.0, more interested in cooling and noise than aesthetics, also 100mm fans is good, I would rather have 2 large fans than 3 small ones.