It occasionally goes off on a day off because of how the settings work (and obviously my failing to check it every night). I would say this happens once every two months absolute maximum.
It went off this morning and DH flipped out at me. He insists that I should use a real alarm clock. He separately wants to ban my phone from the bedroom, which probably heightens his anger about the alarm.
I really prefer to just use my phone, in part because I am a very heavy sleeper and I am able to set my phone alarm to go off twice. AIBU?