I have both steels and many patterns. These steels are excellent, I do wish they'd offer more stainless knives as their stuff is particularly good.
Usually sharp from new, is harder than CASE cv or Böker carbon to sharpen, so higher Rockwell I assume. Nothing like Queen D2 to get there, and GEC grinds them well.
Are they 'better' than those other brands? Argument can go on to infinity on this one as it's subjective. I do find the QC to be stricter at GEC though, never (yet) had a knife with 'my' issues, doesn't mean there aren't poor ones but you don't hear that much about them.
They most certainly ARE for use, lot of people here EDC them and they show the marks of honest toil to prove it. Mine have all worked flawlessly since 06. They can be 'collected' (I like to look at some of mine but don't use all) but if this will yield investment is open to ponzi like question. They release small numbered batches that some people are eager to collect by specific number or by scales. They don't go in for some of the more vulgar kitschy themes that CASE sometimes goes in for, does pull in the money I believe. GEC does offer some very bizarre patterns from time to time, some are 'special'/ acquired taste but they're authentic not some marketing contrivance.
Finally, they are of heavier gauge in construction than most of their competitors, I think they make the best production Traditionals at the moment, but, there are plenty of other very decent brands too. Good for choice, bad for our wallets!
Regards, Will