As an adult sufferer of ADD, I find getting up in the mornings a real struggle. My technique of setting multiple alarms on my phone to go off over an hour was working, but didn't guarantee that I got out of bed on time. I would sometimes find myself waking up mid-morning with a sleep hangover, clutching my phone, with all the alarms switched off.
I was suggested this alarm clock by a friend, and it has become indispensable to my morning routine. Aside from the obvious selling point of zipping round my room every morning, forcing me to scrabble out of bed to turn it off, a further clever feature is the alarm itself: Unlike most alarm clocks that play a loop of music or emit a regular series of beeps (which your sleepy brain can incorporate into your dozy half-dream), Clocky plays a garbled, arrhythmical set of bleeps, buzzes, pings and other noises that is impossible to ignore, shaking your brain into reluctant action.
Setting it up is simple (although I recommend giving the manual a quick glance), and reliability has been rock-solid so far. If I had more thumbs, they would all be pointing up.
If you're not a morning person, and don't want to splash out silly money on an alarm clock, this is the one for you.