Requirements:
simple
can plug into wall for power
snooze button
reliable (not too many complaints of failure in reviews)
no radio or other useless functions
no display of date, temperature, or other useless info
digital (no moving hands that can break)
After looking for an hour, it seems that this utopian alarm clock does not exist. I will keep looking, but if anyone knows of such an alarm clock, please let me know.