Here are the details of my booking in the confirmation email

1 paid night (flex rate) + 1 stay plus night from April 12 till 14

I expected like 1 night with a price and 1 with 0 but i go this, which is not even equal to 50% for each night, the Monday night being more expensive than the Sunday one (not surprising tho) but comparing them with 2 paid nights with All Plus Explorer, using the stay plus night doesn't seem to be competitive

As my only trip to Asia will be during this period next year and I have no plan to return afterwards in 2026, I'd rather use this stay plus night or lose it anyways