Not reliable as an alarm clock
Update 10-2017: New bug with iOS11 causes it to become unresponsive when you press the sleep button.
Update: new version still quits in the middle of the night, leaving you without an alarm. Dont rely on it to wake you.
Works most of the time, but a backup alarm is a must. The app will occasionally quit in the middle of the night leaving you without an alarm (or tracking).
rtm808 about
Good Morning - Alarm Clock, v1.6