I had a billing error where they charged me for an extra day because the 'return scanner' didn't pick up my car on time. It took three phone calls to get it fixed. A bit of a headache for a 'premium' brand.

The selection in the Emerald Aisle was pretty picked over when I arrived. It was basically five identical white sedans. Still better than waiting in line, but I was hoping for one of those Wranglers I saw earlier.

Caters to frequent travelers with streamlined pickup and loyalty benefits.

The 'Emerald Aisle' is the greatest thing ever invented. I book a midsize and usually end up driving away in a luxury SUV or a high-end truck. If you travel for work, National is the only company you should be using.

My absolute favorite. Choosing any car from the aisle is the best perk in the industry.