Superhub arrived today after a slight mixup over time of delivery.
I installed it easily, called up activate, and the call was answered immediately. It all all went like clockwork. It connected to a Mac, two desktop PCs, two laptops, an Apple TV, an iPhone and an iPad.
Top marks for speed, checked several times and got 30MB each time.
I read on this forum about making some configuration changes to improve reliability. Can some kind soul remind what they are please.