Used this a couple years in a row now. Prior to that, prepared my taxes by hand. Pretty quick and intuitive. My tax situation has become a little bit more complex over the years, so this has helped makes things quicker. Never used any other tax software, so no basis of comparison to other tax software out there. That said, used it two years in a row and intend to use it again next year.
My federal e-file failed due to this software screwing up our IPN number (6 digits). First it asks for any IPNs, then it requests self creating pins (5 digits), unless you have an IPN, then it truncates it. So confusing, and no warning that you set yourself up for an IRS rejection.
It is impossible to fix mistakes-the interview screens don't always reappear. The software won't let you change answers. The capital gains program is awful. You can't get real help from the program.