Been using HR BLOCK for over 16 years now. It's quick, easy, and painless. I believe it's also the only program that stands with me if audited (which I haven't tested yet, thank goodness!).
The software is expensive, it is all we have ever used though. I feel we should get one free state e-file for the price we are paying for the software.
Been using H&R tax software for many years (I forget how many) and am still happy with it. Just wish it had some additional forms in my state tax software.