Depressed or Anxious would you talk to a robot?

Could talking to a Chatbot help people with anxiousness and depression?

Stanford University have developed an App called Woebot which works via Facebook Messenger. You can let the bot know how you are feeling and it will respond with support.  It cannot treat people and obviously not as good as face to face with a professional or therapist. However time will tell how effective it will be on supporting anxious and depressed people.