Lets see...
Probably an 80+% upgrade rate domestically (all but one CPU), 100% international (GPU) when on suitable fares.
Exit row window 100% of the time my domestic upgrades haven't cleared.
Some delays and cancellations (mainly due to weather), but all have been handled extremely well, never arriving at my final destination more than about 1 hour late.
Generally good service from crews, although sometimes this can be variable.
Good schedules out of both SFO and SJC (via IAH) to most places I need to go.
What's not to like?