The process of change is the traditional exchange of body fluids in a ritual setting. Sex drive is first decreased then increased beyond the intensity before the change. Most vampires describe the sensation as like that of being on LSD during a mild trip. From the descriptions, it seems to me to be more akin to the effects of thojune, the halucigen in Absinthe. Either way, the sensuality of a vampire is appearant.
Some vampires notice a change in muscle movement.
It is more direct, smooth, rapid, and efficient. Most vampires of this variety notice a slowed aging process. Depending on the strain of the virus, all of these changes are present to differing degrees. I have not met any one older than mid-sixties, so longevity is debatable. The one in her mid-sixties I met looked like a sickly mid twenties.