I have won 2 times since Borderlands 2 been out, i also got an legend Pistol (harold) and Rocket launcher (derp nukem) --- Pokemon White FC (Mickie) (3568 9356 4362) Pokemon Black 2 FC (Nikita) (0820 1558 5853)
Got it once and received a legendary assault rifle. Think it was a lv 48 verruc. I was incredibly chuffed due too the fact that I had spent days trying to get the challenge for 3 vault symbols or 3 iridium bars, was having the worst luck that I even ran out of money so a friend gave me a few mil to keep playing lol.
Since then I decided to farm for a lv 50 version of the verruc.........to this day it hasn't dropped! --- GT : Hebeegeebies