Headfonics's review of the Final Audio Heaven VIII, about which I left a Brazilian strip of commentary, is a pretty good read, with which I mostly agree. That is, apart from the following:
Heaven VIII lacks the upper mid heat that has made a number of hi-end Final Audio earphones hard to listen to for long periods of time. VIII is smoother, and comparison to hitherto news-making balanced armature earphones from Final Audio, rolled off. It's got none of the dirty decay that accented some of the other mid-top end earphones. For that, I'm glad.
The Headfonics review is a good, pithy review of a good, pithy earphone.