Snowboard Instructor

I have four weeks snowboard experience (annual holidays over 4 yaers) and
enjoy it thoroughly, so much so I am considering doing a snowboard
instructors course in France.

I am off to Morzine in a couple of weeks and will try to have a chat to some
British instructors based there but I wondered if anyone has any experience
of the typically 11-12 week residential courses available in France.

Any advice on the effectiveness of these course, whetrher they are good
value, whether they give you a qualification worth having (one course offers
a BASI Level 3 qualification), likelyhood of getting work with such a
qualification, likely pay, etc

Also after the season ends would this qualification get me work in NZ or Oz?

Any help/advice would be appreciated.