I've been using H&R Block Tax software for many years. It is so easy to use and I've never had any issues with filing my taxes. It also makes filing online so much easier.
Pros: Easy to prepare, Maximizes refund, Easy to import documents, Fast
Reliability has decreased the past two or three years. This product used to be relatively error free. Now several updates are required to eliminate software bugs. It's disappointing to see an increase in software problems.