I would really recommend using the unstable version, https://bitbucket.org/Diffeomorphic/import-daz/downloads/, because there has been much progress on materials since version 1.3, especially for Gen 8 characters and refractive materials. Some was described in http://diffeomorphic.blogspot.com/2018/06/material-progress.html, but refractive materials like eyes are progressed since that post.
Stable version 1.4 will be released will be released in a couple of months. The one thing missing is support for Blender 2.8.