PBT got me an express package from Auckland to Wellington in 1-2 days, not sure when it was sent, but it didn't take long. It was delivered by two guys in a normal car, they're obviously using extra people as delivery drivers.
That's lucky! My PBT deliveries made it to Wellington overnight and then all sat in the Wellington depot for 15 days before finally getting delivered only after the seller chased them up. Oh wait, they have misplaced half the consignment and are now looking for it.