Only bad thing is that it looks like they're already packed and nothing else can be added as it says that they'll be shipped together in a single box. May be I'm misinterpreting things, but that's how it sounds to me.
Which then means, that you'll end up paying the FULL shipping amount on *each* set as there's nothing to combine if it's already packed in 2 per box.
Works great if you only buy one set, but no so much for 2+. Can't complain with the base price of the items themselves however.
I think they were just clariffying that these will be each in a seperate box, and not a 2 pack. They should all ship together if you order more than one set.