I'll say again, mach 3 turbo is leagues better than quattro.
Leagues? Sorry. I mean mach 3 turbo is about the best razor ever made while quattro is akin to a cheap knockoff's disposable blades.
Basically, on schick razors have this little wire running down the middle of the blades i guess to make it less possible to cut yourself (how? i don't know). But I found that if I let my beard get to a certain length (meaning just above peach fuzz and beyond) it would end up snagging. SNAGGING! God we were so past snagging when mach 3 was put to the market. Not to mention the irritation the little wire has brought. Same with a couple people that i know. With Quattro I also came to notice how many more times you'd have to reshave an area, I'm assuming the blades were sharpened with something similar to butter because it just isn't that great at all.
So now when I'm at work (merchandiser for a pharmacy) I will always recommend Mach 3 (namely turbo) and not recommend crappy me-too products like Quattro, Mach3 power, etc. Quattro because the shave is just as irritating as their 3-bladed razors, Xtreme3... and Mach3 power because it's too expensive... even the blades! (which are like 5 bucks more expensive than the turbo blades which break down quicker over time and aren't that great for shaving the throat area)
Honestly after reading the last 2 quattro topics, I'm almost 100% sure that you guys are just mindless people buying into the hype because it has a 4th blade. So in an effort to make people save money and not fall into GA's happy to get something for free hype, Mach 3 Turbo absolutely crushes the Schick Quattro... as long as you aren't counting the blades.