I use the Quattro too.....however, I find the prices of refill catridges to be outrageous.
I have the same problem with the Quattro on facial hair than is longer than a 2-day old stubble.
The blades are expensive, you're right. Still, when I take my time and extra rinse, and when the blade is sharp, the quattro gives me a hell of a smooth shave! You get what you pay for, sometimes! :-)