Well, take my list with a grain of salt since I'm a newby myself, but here is what I did find out and found valuable and/or wish I had found out.
1. Generator operation, including switching between power sources
2. Heater operation
3. AC operation
4. Fridge operation (including various modes
5. Stove/Oven/Microwave operation
6. Water and water heater operation
7. Black and Grey water tank use/draining
8. I'm not familiar with the Inferno, but any "conversion" component operation, i.e. drop down bed, slide, etc.
9. Leveling best practices
10. Any other best practices he's found for the toy hauler
