I reported on the current state of the Essence adaptation to the systems engineering that is being done in the INCOSE Russian Chapter (http://incose-ru.livejournal.com/41734.html). Slides are available here:
It also worth mentioning presentations about the Essence usage experience:
1. Burkhard Perkens-Golomb, Munich Reinsurance Company (Munich RE). Key benefit is in the introduction of the common language to discuss software development across the global organization.
2. Dave Cuningham, Fujitsu. Key benefit is in the practices defined using Essence kernel embedded into the Fujitsu Services enbling system's tools.
Note about the Essence: it appears that the most counter-intuitive aspect of the Essence is distinguishing between alpha and work product.