I used it in my Soul Silver game. I quite enjoyed using Metronome, haha.
But, one time I hated it was I was battling a trainer, and only had Togekiss left. The trainer had one pokemon left, so I tried my luck and used Metronome.
Then, Metronome decided to be Explosion.
Small experience. Togekiss (nicknamed Bob in my game, dunno why) was one of my main, and had Fly (HM). I quite liked having him, mainly for Metronome.