I have the Ka-bar heavy bowie, the 9 1/2" version and so far i have been very impressed with it!
While the steel might only be 1085, for its intended use it works beautifully!
True, it might be a tad softer than "better" steels, but that works both ways, sharping is a breeze, though you might have to do it a bit more often.
Today, i went outside and cut some 2-3" green bamboo without any problem.
I did roll the edge a bit, but that was because i hit some rocks...20 sec with a file and it is as good as new!
Hope this little info helped