Team 1539 has used 80/20 for a few seasons, i think its about 3 so far, and have decided to work our way away from using it as much as possible. I will say that it is good metal, and easy to work with, but the only problem that we ran into was how heavy it is, because the (1"x1") weighs about a pound a foot. Otherwise, it works great for manipulators, and etc. (personally I would suggest using it sparingly)
note: small scrap pieces work as great pendants on necklaces (not that I made one for myself or anything

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"HEY I GOT ANOTHER ONE OF THOSE THINGS!!
ITS LIKE A HEADACHE WITH PICTURES!!!
i think they call it an idea.