As I understand it, CS markets knives rather than produces them. As such, the quality varies. IMHO, most of the stainless stuff is almost ridiculously overpriced. A lot of people like the Voyagers. I have handled and used some nice Carbon V stuff, but the Recon Tanto was a junky design. The SRK is a classic. The 4xx, like the Recon 1, tends to not be so good - a friend of mine had a Recon 1 that fell apart very quickly. The zytel Ti-lite has a nice thin blade with solid lock up at a nice price - it needs occasional sharpening.
A lot of their marketing (hell, maybe all of it) is BS.
My rule of thumb for Cold Steel: if MSRP > $100 USD, do not buy it. It will probably be crap for that price. Otherwise, you might be getting a deal.