Prefered service is OK...ops seem a little sloppy there. So far, every time the bus driver has dropped the prefered customers off at the booth, and informed us all what slots are cars were in - so, just run to the car, start it up, and go while everyone else queues in the small booth to get their cars.

As Select, I've had mixed results - some upgrades, but often to cars with obvious damage, such as bashed fenders. The only big win I had was a requested upgrade from an SUV to a nice, new minivan with DVD...but then, the minivans aren't terribly popular, are they?

The oddest thing at IAD happened with my last rental - I didn't even look at the ticket that the RA gave me until I got on the plane - it said "See agent" - I realized that the "Miles In" was less than the "Miles Out" - perhaps Avis should have paid me for the rental!