I have used TurboTax since the product was introduced and overall it gets a little easier to use each year.
This year, though, I was disappointed that the Ohio state tax forms did not automate the new small business deduction and instead simply directed me to the state department of taxation for a paper copy of the form. The SBD was passed last spring so I think Turbotax had plenty of time to incorporate this change to Ohio law.
What's great about it: The step by step process keeps getting better.
Great tax return process with a lot of help handy. More convenience if TTX makes it clear that car loan interest paid (and the like) is NOT deductible in some cases.
What's great about it: Clear step by step walk through process making the task less painful