The VR is a great plus, gives you a bit more confidence at slow shutter speeds but it does little help at the dance floor with moving bodies

The shot I posted here is one of several that were shot on very slow shutter speed.

JUST an AMAZING lens to be able to still produce reasonable images in low light situation with slower shutter speeds

...... F4 not a problem as with VR slow speed hand held shots are very possible

Instead, given the f/4 and VR feature of this lens, it is best used not as a fast lens but as a landscape or travel lens by someone who will be shooting this handheld at apertures from f/5.6-11.0 at fairly slow shutter speeds.

Good speed

Anywhere near the range of marginal shutter speeds, VR will allow the camera to be held with slightly less care, allowing shots to be framed and taken more quickly, and allowing shots under imperfect conditions (camera held in awkward position such as above head, or in a moving vehicle, etc) to be much more likely to turn out sharp.