I have tried the French Rabbit tetra-pacs.  I was far from impressed by the quality of wine and by day 3-4 and some fairly rough travel the containers were beginning to seep.  Not really a full leak, but some wine escaping around the edges.  I think the Chateau l' Cardboard (five litre boxes) produce better selection for quality wine and a more durable container.

For what it is worth.

Park