★★★★★
I think chamomile is a good contender for "king of herbs". In my experience it's excellent for:
Mild depression. One cup of chamomile tea can completely change my mood to that of being calm and optimistic. I think it contains tryptophan, which makes serotonin, hence its feel good properties.
Complexion. Makes me look healthier.
Upset stomach. Almost as good as peppermint tea.
It's amazing stuff.