Perhaps the best way of reviewing this software is by reading a text and not correcting it so that you can see how many errors Dragon naturally speaking makes.
Here is an extract taken from The Reason Why, by Cecil Woodham-Smith:
Before The Light Brigade had advanced 50 yards the Russian guns crashed out, and great clouds of smoke rose at the end of the valley. A moment later an extraordinary and inexplicable incident took place. The advance was proceeding at a steady trot when suddenly Nolan, riding beside his friend Captain Maurice in the first line, urged on his horse and galloped diagonally across the front.
Galloping madly a head and to the right, he crossed in front of Lord Cardigan -- an unprecedented breach of military etiquette -- and, turning in his saddle, shouted and waved his sword as if he would address The Brigade. Had he suddenly realised that his interpretation of the order had been wrong, and that in his impetuosity he had directed the Light Brigade to certain death? No one will ever know, because at that moment a Russian shell pressed on the right of Lord Cardigan, and a fragment tour at its way into Nolan's breast, exposing his heart.
As you can see, there are some errors, but once you have learnt to use the software correction is quite an easy process.I still use the keyboard, but much less than I used to.
I installed Dragon NaturallySpeaking 9 on a Dell laptop with one Gb of RAM. the only technical problem that persists is that the software does not like to hibernate. I suspect that this is because the user files must be saved before shutting down the programme.