Today I got an email from the Marvelous with a big discount :
85% OFF for Marvelous Designer 6 License Holders
75% OFF for Marvelous Designer 4,5 License Holders
I don't used this software into my game development and rendered.
The main reason is the big data output of this software.
You can used the fbx file output if you need with Blender 3D or default render of Marvelous software.
They also come with a tutorial about UV :