It's big and complex and some of it is being used by Big Financial to make it harder for the smaller players to compete, which of course makes it easier for the big guys to capture more of the market (but that's another rant).
3. Passed Wall Street Reform: Signed the Dodd-Frank Wall Street Reform and Consumer Protection Act (2010) to re-regulate the financial sector after its practices caused the Great Recession. The new law tightens capital requirements on large banks and other financial institutions, requires derivatives to be sold on clearinghouses and exchanges, mandates that large banks provide “living wills” to avoid chaotic bankruptcies, limits their ability to trade with customers’ money for their own profit, and creates the Consumer Financial Protection Bureau (now headed by Richard Cordray) to crack down on abusive lending products and companies.
So "reform" in this case is a relative and somewhat dubious term, but still, we got something out of it: Consumer Credit Protection, Reinforcement/Restructuring of Sarbanes-Oxley, Some restriction on banks investing in private equity instruments, etc. It's not everything I think we should have in place, but it's something.
Now if the Repubs on Capitol Hill could manage not to stand in the way, it might do us some real good.