Alright, this is how the cargo hold looks:

And here's a closeup of one of the cargo hooks with my thumb in there for scale:

They look flimsy, but they're sturdier than they look...they could probably retain a pretty substantial load, but they're nowhere near as sturdy as the honkers in my GTI. Definitely more than just grocery bag holders, though. If I had a 25" TV in the back of my WRX I would feel confident holding it down with these.