I've used TurboTax for at least ten years and I've never had a problem. It's clear and easy to understand. Although it occasionally asks the same question more than one (such as if I'm ready to file my state return after already congratulating me because my state has no income tax), I'd rather it be redundant than skip something important.
When an update is done Turbo tax signs off even though it says it will stay available. I have to sign back on and wait. Most frustrating of all is every single page requires the user to page down and click on continue or back. There is much empty screen available on most initial screens. When checking back on something already entered, it is exasperating to have to page down/click when I could just keep clicking next page looking for errors.
What's not so great: continue is too far down on page after updating does not return to screen
Easy to use, although a "Back" button would be nice in some of the steps. It is much, much faster than paper and pencil. Although it claims to have checked for maximum deductions, it missed the depletion allowance on one asset.
What's great about it: Easy to use, mostly intuitive.
What's not so great: Not quite as thorough as advertised
Another year of no sweat tax prep with TurboTax. I've been using them for over a decade, and it's gotten better each year. Even a hiccup with the installation was worked through by following TTax advice. See you next year.
What's great about it: Interview format is extremely good
What's not so great: a little trouble downloading, but TTax advice worked it all out