I have use H & R Block software for yers. This year I had a problem with the State software and could not send my return electronically. I had to mail the return to the State and wait 8 weeks to receive the refund.
The federal software works very well. The state software (AZ) lacks support for the tax credit forms. Some are not supported at all and it you use them you cannot e-file your state return. This has caused a 6 to 12 week delay in getting a state refund each year.
I like the web version better is more easy to use and follow, the questions are more intuitive and take you faster to the correct result. I hope next year the software get closer to the web version.
Pros: Easy to import documents
Cons: Time consuming, Doesn't maximize refund, Hard to prepare, Hard to import documents