Well, the sound quality is superb - very balanced and detailed - but the noise transferred from the cable when you're walking is distracting. Not quite sure how to resolve this, I was thinking of applying some heatshrink wrap to the cables? Why anyone would need their headphone cable to be flat and grippy I'm not sure, all I know is it sticks to my jacket awkwardly and transfers a heck of a lot of noise to my ears. On the plus side, as I said the sound quality is excellent as is the sound isolation aspect, I can use these on the train or tube at moderate levels of volume and still hear clearly, without disturbing anyone with your classic 'open' cheap earbuds. Overall very pleased with these, I tried some AKG K451's recently which everyone seemed to rave about but they were horribly muddy and bass heavy - nowhere near as accurate as these Klipsch earphones. Despite the cable noise, I would still recommend these to people when they ask about headphones, at least for now until I come across something better?