I bought it but I can say that I regret doing so. For someone who doesn't often fall for the pre-order hype, this has been one of those kick-in-the-ass realizations to not do it again. Shame it cost me $35 to learn my lesson the hard way, but that's what it sometimes takes when you're a big fan to a franchise and blind faith. Even if they released an improved AI and HD texture pack patch, I won't play it because the core mechanics are busted beyond measure.
Gearbox is on my shitlist for being part of this mess and I will likely never buy a product that's associated with Randy Pitchford. I just can't respect or trust him.
That said, the most entertainment I got out of this is lurking in the official forums and reading all the heat it's continuously taking.