Ahhh, the Apple Adjustable Keyboard - Pretty good, IIRC. Bit delicate and fiddly in construction, but kind of fun. Short throw Alps, I believe.
The Apple Design Keyboard, on the other hand, felt like it was "designed" by the Marquis de Sade with a touch and response only a true masochist could enjoy.
I have experienced few boards which were a total fail to such a huge degree. And it's not just the "tactile" experience of the thing (wet tissue paper would be a significant improvement). With the few I've had the displeasure to have experienced, even if you mashed the keys down, every once in awhile it STILL refused to register your keystroke. And god help you if you came to it from a mechanical like the AEK II, because sometimes you ended up missing whole words!
When a board fails to provide even a rudimentary degree of functionality for its intended purpose, it is unconscionable and unforgivable. And to top it off, though they were intended as a lower-cost alternative to the pricey AEK II, they were still pretty darn expensive - even more so in 1994 dollars.
At least with the Apple Pro Keyboards I've used they actually work and I don't have to put my fingers in splints afterwards. Obviously, if they've been used in a school setting then all bets are off with just about anything short of a Model M.