I'm kind of neutral on Cold Steel's stuff. Their older stuff, outsourced to Japan, contained various objects of lust. Nowadays, their mainstream line seems to have gone downhill. I played with a few of their Ultralock folders - three, to be exact. Two had massive amounts of play, and the other opened with this horrible gritty feeling and noise (!).
The other thing, I guess, is that they'll do all these crazy things with their knives on video, then turn around and say "if you do these things, that's abuse and isn't covered under warranty." They only cover "normal" use, and to hell with the car doors and hoods. So much for backing it up.
As for coming and staying sharper than other brands, I have to say your experience is far removed from mine (and quite likely from other forumites'). At their best, they match the out of box sharpness of, say, Benchmade. I've never seen one that was as sharp as, never mind sharper than, a Spyderco.
Lots of people like their Carbon V (whatever that is now) blades for outdoor work and other utility tasks. Their new high-end line looks cool, and I did play with the Black Talon, which was well-done in most respects. The lock tore up my thumb, though. Literally. I mean, I'm not Paul Bunyan, and I don't swing an axe for a living and consider blisters and calloused skin a sign of proper living, but I'm not a girly man who uses Jergens and moisturizes every morning. I mean, that thing tore the outermost layer of my thumb off. That sh*t hurt, man. I was peeling little flakes of skin off all day.
*Ahem*
If they can get the quality I saw in that knife to trickle down, and make the lock a bit easier to open, that'd be really cool. The only problem here: They've managed to match BM/Spyderco/Kershaw quality, but they've far surpassed the other manufacturer's prices. San Mai steel aside, the new high end lines are pretty much right in line with the mainstream offerings from the other major manufacturers. I usually don't gripe about prices, but $300 + for what these knives offer is just really egregious.
Oh well, if you're still reading, I hope this has illuminated the other side of the Cold Steel river for you. Sorry for the ramble, it's almost 4 AM here...