My brother told me about the Gilette Vebrating razor. He said he doesn't get any cuts with it. Checked it out in Consumer Reports--their review was pretty extensive. Consumer reports had people compare it to the old Gillette 3 blade system which is what I used. They said it was about even.
So, I gave it a go. I wouldn't say I get any smoother shave out of it (I still need to shave my roughest spot twice). But I would say it is less likely to cut and the vibrating motion does make the shave feel for more comfortable. The blades are interchangeable with the other Gillette 3 blade system.
So, marginal thumbs up. I'm going to keep using it, though I wouldn't say it is something you can't live without.