Converting Cube models to XMP format offers several benefits:

Here's a useful report covering what these formats are, why you'd convert one to the other, and the available tools/methods.

This is with a simple converter, because:

You shoot video (Log footage) and photos (RAW) at a wedding. You want consistent color grading across the final album and the highlight reel. Converting your video LUTs to XMP presets ensures your skin tones match perfectly across both mediums.