The computer hobbyist nostalgia factor is off the charts with this thing :)
I installed a big push-on / push-off button as my power switch on my Circuit Gizmo’s board. It requires quite a bit of force, but then it makes a big loud “click”, followed by the instant-boot to the command prompt. It’s soooooo satisfying, and reminiscent of every 8-bit computer I ever owned. Even the “single floppy drive” effect of the spring-loaded SD card reminds me of an old 5.25” disk drive (OK, maybe more like a 3.5” floppy... :)