I've used the H&R Block software for at least the last 8 years. It is easy to use with straightforward questions and access to additional information if you're not sure where to find the information needed. Using it in successive years makes it even easier by pre-populating certain fields and verifying differences from previous filings. The software is reasonably priced and available with a convenient download.
Pros: Easy to prepare, Easy to import documents, Fast
This SW is good, it works. The only reason I give it 4 Stars is due to some of the explanations are either too difficult to understand or non-existent, for us mere mortals which are not CPAs, so for a product that is meant for us, there should be a PLAIN English version of the explanations, as most of the USA does not speak legal-ese.
I have used either TurboTax or HRBlock every year for many years. They both reduce what can be an unbelievably complicated and difficult process to manageable proportions.
H&R Block tax software is a professional application of IRS and state software. It's easy to use and very accurate, although a review of applicable government documentation should also be reviewed for some areas of the applicable tax codes.