Their fied blades are nice enough. While they don't appeal to me much, they are generally of good quality and sound design. They do seem to be priced rather high considering the materials and construction used, though.
Their folder like is not so nice. With the exception of their big 5" monster there is no Cold Steel folder of which I am aware that compares favorably to similarly priced competing products from Spyderco or Benchmade. Cold Steel used to be a source of lower priced quality folders, but I think that companies such as CRKT have taken over much of that market. Unless you require a folding sword I see little reason to purchase a CS folder. They are essentially selling hype that has been shaped into knife form.
Of course, some of their crazier stuff like the maces and battle spears are interesting as well, but of limited practical value.