Product review (1 stars): Turns itself on!  Very unsafe!
Works. Easy to use. No batteries included costs them a star. Seriously 2 batteries at wal mart were $3 and I only needed one. It's just the annoyance of having to drive to wal mart.

UPDATE: The power went out for a second in the middle of the night and when it came back up I heard a buzzing sound.  It was the freaking garbage disposal.  I'm glad I hadn't fallen asleep yet or it would have been running all night.  Came back and looked at the reviews and that's a common problem.  DO NOT BUY, this is a huge safety hazard.