I've owned this lens for several months and a few thousand shots now. Very pleased with the focus speed -- about the same as it's predecessor [refer to "pros"]. AF is also very fast. Barrel distortion on this lens, while not completely absent, is much much better than the non-VR version.
A very visible difference between the VR 'On' and VR 'Off'. Excellent results at the following conditions on a D100: iso 200; 1/45 sec; f/22; focal length 120mm ( x 1.5 for DSLR ); hand held; auto focus. Great to have in low light conditions.
If you want to travel, and carry just one lens, put this one on your short list. [Updated: 22 March 2004]