Will preface by saying this is not a sale and just a deal that is always being offered. In my experience a lot of people dont know about it, but it is really good especially if youre going to japan and want to explore.
Its a slightly slower bullet train but you save about 30-50AUD one way. If youre using the bullet train a lot it might be better to get one of Rail passes. But if say youre going to only Osaka and Tokyo on the trip, then itd be cheaper to get the Platt Kodama to and back, than a Rail pass.
So a summary of the deal is:
Cheaper bullet train tickets (but longer trip)
+ free drink
Can pay extra to get a green car seat (fancier, better seats)
Mainly posting this because summer is coming up and people are going to Japan. Trying to help out my fellow Ozbargainers. As such i wont be able to answer a lot of questions, but i can say i have used it and it is good. Drink can be redeemed at any store on the platform (incl beers).
Thanks OP. Will bookmark this page for later. Is it only valid until March 10th?