I've been using H & R Block for years and don't plan on changing. From year to year even with tax changes the format of the software stays basically the same making it user friendly.
I switched from TurboTax after many years, and it was a breeze! I have an older PC, and HR Block software still works well, and is less expensive than TurboTax. It also comes with potential audit representation, which costs extra yet with TTax.
Pros: Easy to prepare, Easy to import documents, Fast