It’s pretty damned good for generalist things. Especially after training on your voice. I’m quite fond of gaming with Voice Attack - for those unfamiliar think saying “red alert” or “evasive action” and a bunch of macros instantly run a pre-programmed sequence of keyboard, mouse and joystick commands.

It still fails for the higher vocabulary of well educated professionals and specialist lingo. It also chokes on accents. and this.