I have the same one, and my favorite unexpected feature coming from other more digital alarm clocks is that you have to set it every night. There is nothing but an on/off switch; if the alarm is ringing, you switch the alarm off, then turn it back on in at least 12 hours (or else it'll go off at, say, 8PM). That means part of my nightly routine is checking my calendar and turning on my alarm as appropriate, but now I never worry about the alarm being set for too early/late/on on a holiday. Also, it's so loud, I haven't fallen back asleep after the alarm since I got it.