There have been some nice finds, including one unique keycap, but most of it seems to be partial white on black sets, a random assortment of spherical keycaps, and lots and lots of POS keycaps. When you add the $50 postage to Australia, I am feeling a bit better about not getting one. But for someone starting out with custom keycaps, it would provide a reasonable start.
If you missed out this year, apparently it is a yearly thing.