I'm a long time CO Plat who's new to UA.
I thot UA companion upgrade was that my travel partner would have priority as 1p (my UA status).
Just finished PHX-SFO-PDX both ways with Dad (no status). We both had same PNR.
Looking at .bomb, my PNR never showed upgrade

ending/waitlisted/etc. I assumed it was because of the non-status companion.
At check-in (outbound via new Droid App, inbound via .bomb) I was asked if I wanted an upgrade. Answered yes both times.
On each of the 4 segments, I was placed somewhere in the top 3 for upgrade.
Dad was placed on the upgrade list,
but at the bottom.
Seemed very CO style to me, though I rarely travel with a companion so really don't know.
I also wonder if the Agent that made this booking did something wrong.
I used VDB vouchers to purchase these tickets, so had to go to the airport.
The "Ticketing" Agent was clueless on how to book and ticket the reservation. I walked in with the specific flights/dates/fare basis and it took her a little over 40 minutes to complete. I kept showing my 1P card, but she wasn't interested until the tickets had finally been generated. I assumed she entered it ok since we were given E+ seating. Not what I was expecting from UA, given all the comments here how the UA Res sys is so much more advanced than CO's
Steve