As for battery operated razors, as people have metioned - it's a gimmick.
Gillette warrant the use of a battery operated razor for different reasons, making a selling point to the target audience. For instance, on Fusion and M3 power razors, the "micropulses" apparently lift the hair away from the face.
However, vibrations for women apparently exfoliate the skin. Basically it does sweet FA, but it's all about advertising.
Gillette backed fusion with 50mil at launch and blade sales before the UK launch were shown to flop compared to M3 blades over the pond.
What battery comes with the Gillette razors? Duracell, hmm thats funny Duracell and Gillete are both owned by P&G.
Those using Quattro:
I work for Wilkinson sword, but I don't try to convince people to buy one for that reason. A few years ago instead of buying Mach3 blades, I opted for a Quattro razor plus four free blades promotion. Didn't think much to Quattro at all, and went back to the M3.
However, Quattro Titianium isn't just Quattro coated in Titanium - the blades are 30% closer which solves the tug and pull problem I personally found with Quattro.
I have sensitive skin and almost every disposable or system razor has gave me razor rash. With Titanium and Nivea Sensitive Shaving Gel, this has been cured thankfully.
Titanium heads fit the past Quattro, and Quattro midnight handles, so no need to replace the handle.