Here are my additions (I am sure you were expecting them).
* when applying based on marriage the 820 visa you need to be married at time of lodging where the 309 you need to be married by the time the decision is made
* people that are from very high risk countries may have their applications delayed by security checks, just be aware that there is nothing that immigration can do to hurry them up and they do not know when they will come back to them. Rest assured that once they receive the security checks back you will get a decision on your visa.
* there are some countries where majority of applicants will have an interview with the case officer. Try not to worry as in these countries it is their normal procedures.
* when applying based on marriage the 820 visa you need to be married at time of lodging where the 309 you need to be married by the time the decision is made
* people that are from very high risk countries may have their applications delayed by security checks, just be aware that there is nothing that immigration can do to hurry them up and they do not know when they will come back to them. Rest assured that once they receive the security checks back you will get a decision on your visa.
* there are some countries where majority of applicants will have an interview with the case officer. Try not to worry as in these countries it is their normal procedures.
