I’ve used H&R Block (Originally TaxCut) for more than 20 years. I started doing taxes as a side job in 1982, by hand back then. I love this software, I’ve never had any issues or errors.
I've been a user of this software for over 5 years. It is well written and makes doing my taxes much easier. However if you owe a small amount of money and want to send a check, finding where to send it to is a challenge. I would recommend that the software writers provide the "send to" address immediately after the user inputs pay by check.
Have used H&R Block (and previously TaxCut) software for over 20 years. Has always been quick, easy and efficient. Have never had an issue with filing my taxes or my taxes not being correct.
Pros: Easy to prepare, Maximizes refund, Easy to import documents, Fast