440C was the first good high carbon stainless. If it suffered anything in reputation, it was because so many makers in the 60's and 70's ground very blunt edges on it at the factory, making it duller compared to carbon steels, and hard to sharpen.
It's still pretty upscale compared to the 420 steels, and has good rust resistance, holds an edge well, and finishes nicely with today's methods. It seems on the verge of returning to the market in better knives, probably due to the price performance and manufacture issues compared to the "higher" grade steels. Maybe they won't mirror polish it so much this time around.
Not sure about the "customs" issue, HAKs are made in the US I thought, but there has been a change in ownership, and things are looking up. Lots of us will like to hear your experience to weigh how improvements are taking hold; HAK owners like me would like to get another if we're reassured things are getting better.
Please post back as you can and tell us what you like about it.