I am not sure if it is open on Fridays and Saturdays but on week days it is open till late evenings.
You have the option of 1,2 or 3 years. All you need is your passport and QID.
Your picture is taken at the unit itself
The office is on the right side of the departure enterance,
I believe each person has an individual card.
It's good to have. No long queues and frustrations :)
Good luck