I am using Blender 2.78a and I have exported a character with MHX2 with default skeleton. I added hair, eyebrows, and eyelashes.
In Cycles mode I have not been able to get the hair or any of the hair items to look like hair. I have looked at a youtube video called "Blender Cycles The Fast Way" where the user was using MH 1.0.7a (I think). He showed how to use nodes to get hair to look like strands.
I have tried what he used but it didn't work. I have searched online and found what some have used to success but it hasn't worked (Invert Node, Add Node Transparent Node along with Diffuse and Material (and the image Texture Node)).
The eyelashes look more like planes. Since MH didn't provide a black texture, I made up one. I'm not sure if that is causing an issue.
I should note that everything works fine in Blender Render. But I plan to use Cycles for other things.
Ultimately, what am I missing? What is the node combination that I should be using?