I would be interested to see a comparison of people using TurboTax v. the IRS software. With TurboTax you pay a B.S premium up front, but at least you know they have some incentive to find refunds for you as much as is possible
At least as of now, the kinds of people who get a lot of deductions can't use this software. You can't itemize at all, and only a few credits and deductions are allowed.