Character Creator 2.0 Beta attempts to match the PBR visuals in Substance Painter.  
Check out the External Rendering Setup documentation if you are using other tools with Substance Painter: 
https://support.allegorithmic.com/documentation/display/SPDOC/External+Rendering+Setup


PBR Metallic Roughness System

• Metallic greyscale: Higher values equate to more "metal-like."
• Roughness greyscale: Higher values equate to courser micro-surfaces.

PBR Visual Comparison

Below is a comparison of PBR shading in Character Creator along with other software when aligned with Substance Designer/Painter.

[A]


Source: http://www.hdrlabs.com/sibl/archive.html

[B]


Source: http://www.hdrlabs.com/sibl/archive.html

[C]


Source: http://hdrmaps.com/freebies/terrace-near-the-granaries-sunset

[D]


Source: http://naoyv.p7.de/lobby-lighting.html#