Seat family have just redeemed 4 x Y seats BNE-CBR on the last flight out in early August.
Saved a LOT of money over paying for it. Would have taken J seats if available, but not available - and given there are 4 of us (self, Mr Seat 0A, Seat Son and Seat Son GF), that's not really surprising that I could not get J Classic Rewards for the last flight out. The timing is important as it allows the visiting Seat Son + GF to maximise time with the family, but still be here in CBR for the next day to spend time with family here.
I think it's a good use of points in this situation, even though I usually prefer J.