what is it?
IMHO, most cartridges shave shave just as good as a DE. I have been shaving with a Sensor Excel of late and am getting just as good shaves as a DE. I think DE shaving taught me prep and technique. Combine a cartridge with those skills and you're laughing...it's very easy.
Cartridge versus DE is a a Ford versus Chevy thing. There is no winner...except for Gillette...those greedy monopolistic b*stards. j/k
Too many blades = too much irritation and razor burn. Heck I switched to wet shaving with DE's and SE's because my Mach3 was giving me loads of ingrown hairs and razor burn, I never looked back.
Is there anything better? Yes, it's called a GEM 1912....best shave possible in my opinion.