I've been using H&R Block for more than 15 years because it's easy to understand and answers any questions you might have right within the software. Additionally, you have the capabilities to speak to a live consultant if you run into any issues.
Pros: Easy to prepare, Maximizes refund, Easy to import documents, Fast
What Makes H&R Block Premium Software Great for me is the person that's knowledgable who is preparing my taxes. If it wasn't for her knowing where to put the information and or knowing what info to put the software would be useless.
I tried to efile my return and it keeps getting rejected. The code is not human readable and doing a google search of this error does not help in deciphering the error. The information (SSN, PIN, etc) has not changed from previous years when I could efile with no issues.