We've really tried to make the Windows Speech Recognition (WSR) experience great, right out of the box. It's nice to hear others finding that we've done a good job here.
One of the most impressive features to play with on Vista is the new Speech Recognition system. The best thing about it is the fact that it just works. The new system will type documents for you, and listen out for system commands. The rate of accuracy, even straight out of the box, is remarkably good, and it improves as it learns your voice.