Originally Posted by catarina

Westjet is a different animal altogether than AC. No business class, no alliance (other than with AA). No seat upgrades to Plus at this time. BUT, you do get:

Flight Benefits with Gold Status Match or Fast Track
2 free checked bags
No fee to change to an earlier/later flight on travel day
Priority security screening (at select airports)
Advance boarding
4 advance seat selection vouchers
10 airport lounge vouchers

After you have flown enough $$'s with them you earn the Westjet Dollars additional % and Companion Flights at Silver and Gold levels respectively.
You do not receive these right away it you are Status Matching or Fast Tracking.

But, if you are part of their previous program already, your current status with them will be based on last year (or this year)'s current spend, so you may have earned Silver or Gold already.

Full details on their website, with info on Status Match and Fast Tracking.