IIRC: Dyson said that the tests weren't representative of real use, and that if they used a vacuum cleaner all the way from empty to full, Dyson's would score

IIRC: Dyson said that the tests weren't representative of real use, and that if they used a vacuum cleaner all the way from empty to full, Dyson's would score much better. A court agreed that the tests weren't good and ordered improvement. Dyson then asked for financial compensation. A court said the tests weren't bad enough to warrant any compensation.