I haven't had a single AppleDesign KBD break down to date, whereas my AEK2 needs work and both Apple Adjustable KBDs are unusable, being notoriously unreliable to begin with for that matter.

Gotta love that long, uncoiled ADB cord on the ADK. Faint praise issues aside, if it had ADB ports on both ends, ADK would be of the best of the Dome Switch KBDs I've ever used. The center mount pass thru sometimes makes the Rodent's tail a bit too short.