What is the difference between ubiquinol and ubiquinone?
They are two forms of CoQ10. Ubiquinone is conventional and cheaper; ubiquinol is the reduced form and costs more.
Is ubiquinol worth the extra?
Work out cost per milligram at the strength you want. The more expensive form is not automatically better value.
Should I take it with food?
Yes, with a meal containing some fat. It is fat soluble and poorly absorbed otherwise.
Is the larger pack better value?
Usually meaningfully so per capsule, and this is taken over months rather than weeks.