I have been using H&R Block software to do my taxes for well over 15yrs....never had any issue, nor have I ever been audited. I will continue to use H&R Block software, and I highly recommend it to my friends and family.
Pros: Easy to prepare, Maximizes refund, Easy to import documents, Fast
I used the program to estimate my personal income tax that I would incur primarily from my real estate business. The program did not calculate Section 199 deduction properly, resulting in a huge overpayment of taxes (which I subsequently got a refund for using another program).