I'm loving notifications on my wrist, but there are a few rough edges. The worst is that dismissing a notification on your phone does not dismiss it on the watch and vice versa. Messages you received and already read on your phone/computer will remain on the watch face, obscuring the time. This forces you to constantly interact with the watch in addition to your phone/computer.

Other problems: There's no generic support for Android notifications, so only a few apps work, not including Google Now or G+. Google Talk notifications are nice but vibrate the watch too often.