Pros: Tight bass that extends really far, comfort, aesthetics, SOUNDSTAGE, sparkly treble (I love this aspect), pleasing to listen to for long periods.
Cons: Stock cable is pretty bad and cable replacement options are limited to one other, V-shaped sound signature, poor isolation
This headphone sounds great and looks great as well. I have had this headphone for a couple months and no change in sound has occurred so this does not require burn-in.
The sound is V-shaped indeed but if you require a flatter response this headphones responds to and EQ very well. The treble is oh so detailed and is amazing for metal and rock. The bass is slightly emphasized and it decays really well to give that satisfying rumble. The only complaints are really the background sound to vocals and sometimes guitar instruments and the cable. They are clear and detailed but they are not forward due to sound signature.
This can is a marvel for electronic music however with the slightly emphasized yet tight bass. I don't what Creative Labs were thinking when they decided to use a 2.5 connector into the headphones. This seriously limits cable replacement options down to the replacement cable for the HD518, 558 and 598. The thing I absolutely love this headphone is for the ability to drop you into a space. The imaging for a closed can is so spacious. After a couple months of use the pivot points on the headband have scraped away the silver coating from repeated grinding. The build is not like a tank but they can take a beating as I have dropped it on numerous occasions.
Much like the older Creative Aurvana Live! I found these to be a great headphone for all genres with a laid back kind of dark and warm sound.