Mrs CC and I are looking to use them for some internal flights when we visit Argentina in November (IGR and MDZ) - it looks to be the best option available for the price.
Baggage weight limits of 15 KG is a little concerning (looks like you can spend around $35 USD to bump that up to a max of 23 KG, which will be a challenge for Mrs CC

)
Is it worth bidding on U/G's on these flights and does anyone have experience doing so that can give me a rough idea of costs ?
The fare I am being quoted from their website for the economy seats is NA10D03M6 - is this fare class eligible for bidding upgrade to Club Economy ?
Many Thanks
CC