Pros: Out of head headstage, captivating sub bass, best cabling in universals
Cons: Long burn in needed for better SQ, Bulky carrying case, base quantity (churns out "blocks" of base), high end not as refined as other top tier
Burning in helps to bring out the mids and highs on the ie8 and slightly tame its bass;
The ie8 also made me realize the importance of iem build quality and comfort; so far, none of my other iems (Ultimate Ears Triple Fi 10 Pro, EarSonic SM3, JVC HA FX700) can match the ie8 in those aspects.
Btw please check out my review of the JVC (Japan Victor Company) HA FX700, EarSonics SM3.