I'm hoping to learn all I can about travel benefits available to the spouse (primary traveler) of QX pilots.
1). On QX flights, what is the rough cost & standby priority?
2). What about this same info (cost & standby priority) for AS flights?
3). Can a QX spouse travel on OO flights operated for AAG and, if so, what's rough cost & standby priority there?
4). Any 'quirks'/'gotchas'/other things learned the hard way relating to travel privileges for QX spouses (primary travelers)?

Thanks in advance for any info from those who have been there & done that!