This year I started punching data into it and it choked. New York wouldn't finish without Missouri data and vice-versa. After a couple hours of swearing at it I closed the windows and went to bed. The next morning I called the accountant a coworker had recommended.
We had our appointment this morning. We had all the paperwork she needed, she found a deduction I hadn't known about, and in 45 minutes all our taxes were done and e-filed. Cost was about fifty bucks more than TT would have run and worth every penny.
Sizable refund from Feds, small from MO, and we owe NY a couple bills. Not bad overall. And it's done.