I've had nothing but one screw up after another. Tranfer in SFO where app says one gate, display another and neither gate is correct. Several times flight changes between ticketing and flight by me causing boarding agent to say "Oh you are already on board" or "you need to see the agent at the desk" and even being sent to a check in line for the wrong plane. On board though I have been upgraded to F once even though I didn't even think was possible. I have never gotten an upgrade to premium though, or whatever VX calls it. Honestly I am not excited about the A320s being all the planes in the west coast vs. what are already packed 800 series planes with 159 seats down to 146 on the current 320s which I assume will be less once the 12F, and 30 premium seats are installed.