The strongest benefit I have gained from using twig is it's template inheritance model. It has made it easier to modularize my template files. Twig embed takes a little while to wrap your head around, but once you do, it is powerful. http://twig.sensiolabs.org/doc/tags/embed.html

My team works with both WordPress and Drupal. Because Drupal is adopting twig and our product applications use django, using twig creates more opportunity for both cross training and shared understanding.

I have been keeping tabs on what the Craft CMS community is doing as they have been active in helping their community take advantage of twig.