See
ManGratesI searched and discovered that bbqchef reported having a set but I couldn't find a follow-up report.
If you're using them—
1. What size are they? (They come in 4" by 15" segments.) Is that a useful size?
2. On what kind of grill? Pellet? Gas? Charcoal?
3. Are you having trouble maintaining the seasoning so they don't rust?
4. Are they worth the investment? Compared to what?
5. Have you used GrillGrates? How do they compare?
6. Any other thoughts you'd like to offer?