I started using the H&R Block tax software when it was called "TaxCut". I have remained with this tax software because of it's ease of use and it is very thorough in covering all of the tax issues.
Pros: Easy to prepare, Maximizes refund, Easy to import documents, Fast
Filling out forms went smoothly with one exception. I need Arizona from 348, and for four years I have had to download it from the Arizona DoR website and fill it out independently of the software. This makes it impossible to file electronically and is inconvenient. Why can't you include this from in the program?
Also, I find it confusing when you provide updates as late as March 28. I don't know whether to file before this or not. There shouldn't be any udpates after March 1.