Good to hear! I've got one in the fridge, so I'm looking forward to that.
In terms of recipe, I believe that Stone has been using the same base recipe throughout all of the Enjoy By's. This seem to be a good base clone: http://www.bertusbrewery.com/2013/04/ipa-clone-series-stone-enjoy-by-ipa.html
I'd say experiment with a little cacao nibs and cold brew coffee post-fermentation and see what happens!