I bought the digital download version some months ago. Tried to install it more than a few times, but couldn't. I had to call tech. After that, I went through the voice training. Then it said I was ready. And I did the mic check, and it passed.
Then when I actually tried talking into the mic normally, what came out on the screen wasn't even close to what I'd said. It would get two or three words right out of ten or so. I'd try a shorter sentence. No better.
I called tech. From their advice, I purchased a sound card adapter. Still no better.
I bought this software to assist me with emails, and surfing. Sometimes I type too fast, and I have to correct my mistakes.
All I can tell you is it didn't work for me at all. Very disappointed.
It's up to you what you decide.
One final word here...I was fully refunded my purchase price. But that's the only good thing I have to say about the experience.