Unfortunately too buggy. I do not manage to play a single sound and beside the bugs that binary-bronco mentioned, sometimes the window for setting alarms/countdowns changes to a very small rectangle, which can not be resized.

Nice application. It's quite useful for being waken up at morning but unfortunately it's al little unstable an doesn't wake me up :-(

Alarm and countdown work fine. Button in main windows says toolbutton1 instead of Add. After closing main window, reopening it from sys tray brings up an unresponsive blank grey screen, after which you have to quit the app to stop alarms.