I've been using H&R Block software for many years, and the reason I stay with it is because it's like an old friend is sitting there doing your taxes with you. You are familiar with each other, and that counts for a lot!
2nd year in a row I have had a software glitch. This year it was an edit check for a tax credit for a new energy efficient home heating/cooling unit. Forced me to file on paper to avoid the edit check. I like the software in general, but your quality control is not good.