I have used H&R Block tax prep for the last 5 years. My information populates from the previous year which saves me lots of time. I find the information I input is what I would have to locate if I had a professional do it for me. The program is easy to use and navigate. I would recommend to anyone who wants to do their own preparation.
I have been using HR Block premium/ business software for more than 15 years and very happy with it. It is easy to use, has clear Q&A pages, and fairly priced. Alerts you for missing or conflicting entries. It does not check however, the acquisition cost accuracy if your broker reports $0 erroneously. This is not a biggie, but there are a few mishaps if your tax situation is more complicated than most people. Anyone who is courageous enough to do his/her own taxes will easily recognize these and correct them manually.
This should be 4.5 stars for us because we needed to go back and forth in several sections to be able to understand what was needed - but this could have been our own fault as old people. Otherwise - Class A-1.