I already owned a pair of these and came to the reviews to see if others' disappointment was similar to my own. Reading no end of reviews I learnt a lot, first I thought that perhaps I'd bought counterfeits or that as others had mentioned the much lauded "bass-driven sound" was a con. Bass was certainly absent on mine. Then I read further about "the fit" and others' experiences experimenting with the different sized rubber cups that come supplied. I played around with mine and low and behold the bass is there, rich deep sound. I know nothing about headphone technology but a millimetre move deeper into your ear releases all of the sound that these things were clearly designed for, bizarre, but a relief to discover the sound quality. On the down side as all humans' ear canals must vary a bit there may be some people who find it impossible to achieve this fit and can't enjoy the full quality of these great earphones. Once I'd achieved the bass sound I wanted I noticed the other common observation, when I move my head the sound of anything brushing the cables is magnified inside your head, if you clear your throat the sound is hard-wired directly into your brain too. The other point that perplexes people is one cable being longer than the other, the instructions with mine clearly indicate that this is to pass the left phone behind your head before inserting. And there is an advantage to this as it clearly does minimize the sound effect of any friction with the cable. My main criticism would be the great importance of achieving the correct fit in order to release the full sound and the poor instructions that come with them in reference to this issue. Perhaps in typical corporate fashion they didn't want to admit to any weakness in the product because they do require some tweaking to get the right fit.
SUMMARY, great sound but you have to get them deeper into your ear, when you achieve this you will also notice that cable friction sound can intrude, however passing the extra long cable behind your head minimizes this.