Pros: As other reviews say, you hear parts of music you never noticed before!
Cons: Like any earbuds, prone to fall out of ear, if you bump or tangle cord the wrong way.
Everything from the nice tin for storage, the 3 sized ear canal nubs (for perfect comfort and fit) is classy. I tried some skull candies 50/50 (also good, but not at this level) and went with these before I tried the PowerBeats (dr dre/monster) which are $150 - I dont think [for half the price] I need to go there. I listen to a variety of music/audio and don't necessarily care about a thumping bass. I prefer accurate and full spectrum sound. There were also the Bose earbuds I was looking at ($99) but Klipsh delivers both the quality and value I was looking for!<br />As a sound connoisseur, I get many different brands to compare - these are top notch.