I purchased this device as a preservation item to ensure that my Apple II and Macintosh pieces will always have something non-magnetic from which they can boot. It works pretty well.
Big thanks to Steve Chamberlin of Big Mess ‘O Wires for designing such an excellent piece of hardware.
Update: the Mac/Lisa firmware had a weird issue I found when slinging a lot of data through it. Reported it to Steve, he gave me a test firmware and it worked!