I agree. I was on the same flight and in Exec class. My wife kept asking me why paid for these expensive seats when the aircraft was so old and without the new systems.
The equipment was not in great repair. During the flight, the exec class lavatory door fell right off and it took three or four attendents to get it back on.
Come on AC. You can do better -- otherwise, passengers will take the easy alternatives offered by other airlines on the same routes.