Pros: decent bass, present mids, good soundstage
Cons: lack of sub-bass, absolutely no isolation
take what i have to say with a grain of salt. i do not own them, but i merely auditioned them at school.
i was rather skeptical about them at first, but they are not bad. i see their sound sig as something like the monoprice 8320. they have a decent of bass, without being a fart cannon, although it does not extend very well. the mids are good, especially with acoustic guitars, and the highs were present without being too shrill or sibilant. these are no match for a good iem or can, i would even choose my monoprice 8320 iem's over them, but as ear buds go, they are probably the best earbud i have ever listened to.
one thing i thought best to leave until the end, the isolation is completely nonexistent. you will hear everything around you. i found that i had to turn the volume up more than i would like to fight against the background noise i was in, so i would not say there a viable option for me as portables if in a public place. i will still revert back to my 8320 or m50