Prepurchase of the $50 Career Criminal Edition comes with beta access (+ bonus beta access). The regular game preorder is only $30. Also I already gave away my extra key.
Also, uugggghhh the game doesn't come out until the 27th I thought it was coming out on the 13th, I am sad now
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Anyway, the game is amazingly fun. They improved on pretty much everything from the first game. It's great. My only gripe with the game is the RNG loot drops for weapon mods (although they alleviated that with the last beta patch, giving everyone access to a pistol silencer right off the bat) and losing your weapon mod forever if you choose to unequip it.
Otherwise the game is fantastic, and I'm forcing myself to not play the beta (already have over 20 hours in it) so I don't burn out on the game before the full game is out.