Well, we have only used this product for 20 years, but up to this date it has been easy to find (Block mails it to our house about three times each year!), easy to load and easy to operate. So far we haven't found a single thing to complain about. Absolutely FLAWLESS.
Pros: Easy to prepare, Maximizes refund, Easy to import documents, Fast
very satisfied with the final result - there are some usability issues, especially when dealing with fixing 'errors' and such - the program is very confusing and inconsistent and a pain in the butt
The software has worked well in previous years, but was buggy this year. I had to manually override a field because it refused to update an entry for 2019 state taxes paid, allocating them to 2019 instead. It also gave inconsistent results for IRA contributions, varying the taxes owed by thousands.
The product was exactly what I needed to file my state and federal taxes. Once I filled in the pertinent information, the rest was fairly straight forward.