i had to pay $52 for a $60 return because of a screwed up health care system and am currently forced to file 1095A's, which Turbo tax will not process for free. And then Turbo tax wouldn't take the payment out of the return because it wasn't a high enough return. So the return is just the payment plus the high interest credit card fees instead of just $8.
It's been an easy experience for the last few years to file through turbo tax. I like that Credit Karma and Turbo tax are working together. Very convenient for me.