I've flown both the renovated (LHR-LAX-AKL) and old (AKL-YVR) versions of NZ's business class pods and I agree with the above comments. More comfortable seat for sleeping due to the mattress/duvet, plus the space felt more roomy. IFE on the new version was vastly superior to AC's, on the old version it was just better than AC's. Service/food/wine all much better than on AC.
I agree with PLeblond, NZ is a good example of what AC should be but isnt'.