Okay, no need for such intense bashing. The Stuffit-Archives (I downloaded both this and the previous iconset from the website) unstuffed fine. I do agree, I also would have preferred a zip or dmg archive, since those are integrated in Mac OS X, while Stuffit requires 3rd party software.
That being said, the icons are nice, simple and well "designed". I may have preferred a complete system replacement set - the standard folders like home, documents etc. are missing.