target2019
Give me a museum and I'll fill it. (Picasso) Give me a forum ...
The structured interview is not enough. There should be a checklist of the questions and items you need. I see this online for turbotax, as a pdf download.
Putting myself at risk of being characterized as an old codger, I would go so far as to recommend doing an educational run of one year's return with a pencil and paper (maybe before turning to a program for filing for that year). If you don't have a good working knowledge of the Code and Regs pertinent to your situation, the software packages are a bit of a black box--and I'm guessing particularly so if you do the so-called "interview" mode.
I recently had a similar conversation with late-20s Son and his S.O., both talented at math even for S.V. engineers. They did not understand standard deductions and how that played with itemized deductions; always just did the software. (Now, they are investigating implications of MFJ for two high CA incomes--fun times!)
OK, you can play on my lawn now.