Chicago

Long wait time for pickup, but drop-off was very quick and easy.

1. Did not get the reserved car model, got a downgrade instead of an upgrade; 2. Waiting time was too long;

Checking in was extraordinarily slow, as there were only two people in front of me in line and it took over half an hour.

The Pick-Up instructions for ORD are misleading: "From the terminal, you can see the shuttle bus pick-up area. Take the shuttle bus to the store and check in at the counter" ORD has a tram to get to the car rental lot from the terminals; only airport hotels have shuttle buses. Please correct the instructions to indicate that travelers should take the tram.

I waited for about an hour to be serve. Also, the car was not clean from inside and outside

Car reserved was not available. Was charged an extra $153 for an upgrade. Was not happy. Previously if this happened I was not charged the difference (not Budget). Not my problem that reserved car was not available.