Over the past few months, I've been putting together a design and application for the VCDX.  I've been wanting to defend before they retire version 4 of the certification.  I was selected to defend last week at VMware Partner Exchange and am happy to report I was successful.  Since I have already passed VCAP5-DCD, this effectively grants me two VCDX certifications for the price of one. I've written a blog post giving a bit more information and some tips for anyone who is looking at the certification.  
2 Hours, 2 VCDX’s (VCDX Experience and Tips)