Although easy to use, my return was rejected twice by the IRS not through any fault of my own, but errors in the app that has required at least two updates.
Easy to use software. Lots of available support if/when needed. I appreciate the updated features each year. And when you use the software year after year, much of your information is populated, and the program will ask specific questions based on prior returns.
Pros: Easy to prepare, Easy to import documents, Fast
I have been using H&R Block software since it was Tax Cut and have been pleased with the ease of use. At this point it just leverages my past years return to guide me through current tax year forms and substantially shortens my time to final tax forms. I find the electronic loading of 1099 and W2 info helpful, but coverage is only about 30% of my accounts so a fair amount of hand entering of financial info. However, this has become a relatively painless process as I have done it for years.
I also find it very useful for planning my next year's tax strategy. As it comes with the HR Block backup there is good coverage if you need it.