I think Alluvion drop system on weapons, and random augments system, would be great. IF the gear was going to be useful in a years time. The reason it isn't so great, is because of the wider built-in-obsolescence problem in ilvl.
It would be worth it IF the weapons had a shelf-life of at least a year. But they don't either the weapons will not upgrade to 125, or the augments will be lost in the process. Either way its a monumental joykill. "Yay I got the weapon drop and uber augs finally! Unyay, my mannequin will be rocking this item in 6 months time."
Results on Gaxe, used around 35 stones, at average 33k gil each.
Svarga : Accuracy +18 Store TP +5. [I'm very happy with this gaxe.]
Alluvion is fun, the bosses are cool. Being able to play most jobs and have casual players in runs for tier 3~4, is cool. The problem isn't the bosses random weapons, or the random augments. The problem is what will happen in a few months time when ilvl lurches upwards, and your precious weapon is used for chopping firewood.