The CAL! 2 is a big improvement over the first version.
 
Creative brands this as a "premium headphone" on the box, but is it?
 
First thing I noticed was the soundstage. It's MUCH better than the first CAL!. Much more air overall in the music. Good for movies as well.
 
I thought the bass was too boomy at first, but after some burn-in it became better. Maybe I just needed to adjust to the new sound signature? But honestly, now after som burn-in I can definitely say that the bass quality and extension is better. 
 
I don't like the cable. I mean it's fine for a headphone in this price range, but it feels a bit flimsy. I'll probably buy a new cable, since it's detachable. 
 
The price is almost twice that of the firsl CAL!. I could spend a bit more, and go for the AKG K550, but honestly, the comfort on this headphone is better than the AKG, and I don't think there's a big difference in sound quality. I'd say the soundstage is the same? This headphone is a serious contender to other closed-backs with big soundstage.
 
The build quality is also an improvement, it just touches your head gently, and you don't feel pressure at all. 
 
Overall, if you liked the much praised CAL! 1, go for this one!