A virtually useless review.
I've been typing for almost 50 years. I learned on an Olympia in high school, and typed on a Smith-Corona cordless electric at home. Oddly, Consumer Reports' panelists preferred the "touch" of these machines.
Any man who actually types (as opposed to poking the keys) and has used the IBM PC keyboard /knows/ that this is the best keyboard. Period. You type faster, more confidently, and make fewer mistakes.
These keyboards are still available, both as NOS and newly manufactured, supposedly to IBM specs. Yet you haven't reviewed them. Why?