Flew 1L on UA900.
The outbound UA901 had gone some equipment changes in the last few days before departure. It was 2-4-2 for months and then a couple of days before departure, it showed 1-2-1 Polaris cabin. But then flipped back on the last day and my seat got switched around each time.
I ended up with a inside middle instead of an aisle seat.
Not sure why but they gave me a $175 e-Cert for that flight. I think there was a slight delay IIRC.
Then on the return, for about 90-120 minutes, my screen was frozen and they tried to reboot it several times. Apparently it takes 5 minutes to reboot each time or so they told me. But it didn't work until about 90 minutes later.
They gave me a $250 e-Cert for that.
So $425 in e-Certs for a $2600 P fare.