3D PDF solutions

Hello,

I'm reseaching various tools to create 3D PDFs from NX CAD models.  I see a number of options:

1. Acrobat Pro + Tetra4D 

2. Anark Core Workstation

3. Theorem

I'm curious to see what tool(s) are being used by this community and what limitations you've experienced or which products work well.  If you have any experience and are willing to share your experience, I would appreciate the feedback.

Thanks!