having the same issue
picked this up (Dragon 12, ***edit, just checked, and I have 11.0 not 12.x) just before my daughter was born, thinking (I work from home) I could feed her (from a bottle) and dictated emails... it added some pretty freaky words into my emails every time she made a noise, and as such have not used it since. I even bought the #1 recommended (non $300) headset for using with Dragon.
It works pretty darn good when dictating anything of length, but I agree with most, that it is not accurate enough for shorter dictations and after having to edit the document it can actually take longer.
Before someone says it takes a while to "teach it" I spend 3 months doing nothing but training 3 days a week, and I used Dragon 6 (I think it was 6, a few versions before they were bought out) A LOT, as in daily, for writing papers and multiple fiction book drafts. I had several issues with it, but knew them well enough to expect them and how to correct them well enough that I could edit while dictating. The training for existing words helped out immensely, If I remember correctly, the old version let you record multiple different ways of speaking the same word (I could say it slow, fast, mumble, deep voice, not so deep voice, mic close, mic far) and it would then get that word correct 95% of the time, no matter the circumstances. The new version seems to not work the same way, it errors during word training if I try to say it differently and after training does not always recognize the word.
I think the most useful update would be "background noise cancellation"
Second on my list would be a new wireless tech that uses a MIMO style transmit and receive interface, with reduced latency. (this is something you can learn all about if you research wireless headsets and dictation, although not mentioned in the research I did, it would help to alleviate most of the referenced issues with wireless headsets)
