While some intelligent folks such as Jim Grant and Jim Rogers have called Ben Bernanke and his crew irresponsible and clueless, others like Warren Buffett have complimented the job the Fed did in saving the American financial system and economy.
You can also count Carlyle's David Rubenstein in with people who think Bernanke has done a good job, with Rubenstein going as far as saying that the Fed should be considered the "hero" of the last four or five years.
Rubenstein thinks that the Fed saved the American economy and the Global economy as well. He thinks that interest rates will remain low for a while longer, but at some point they will rise.
According to Rubenstein, the greatest fortune to be made in the U.S. in the next few years is going to be by someone who figures out the exact timing of that rate rise and holds the correct derivatives to profit from it exponentially.