I tried the Quattro when I got a freebie in the mail. It worked OK, but I didn't like it as much as the Mach III. It was just more difficult to handle or something, I can't really put my finger on it, but I wasn't really impressed with it. I have used the Schick Extreme III disposables and they are pretty decent. Nice to have on hand for an emergency, should you run out of your regular blades.