Self-driving in Yellowstone, a large SUV is necessary

Easy car pickup

Pickup was very quick with no sales pitches. The staff was very friendly and they provided an upgrade.

It's easy to reserve international cars from home. Upon landing, you can conveniently pick up the car near the airport with simple procedures and comprehensive insurance, avoiding difficulties due to unfamiliar local policies. Indeed very convenient.

There are too few cars to choose from, and we didn't get the car we originally booked.

There are many car rental companies in the US. A friend recommended AVIS, so I didn't spend much time comparing. Based on what I saw, AVIS seems reasonably priced among the bigger companies. Companies like HERTZ are quite expensive! AVIS and BUDGET are part of the same company, and I guess AVIS might be slightly more expensive. They have a lot of new cars (as big companies typically do) and great service. They don't push for extra insurance and are very considerate. We arrived at Bozeman late, around 1 AM. The staff was patient and explained that while they could give us the car early, there would be an extra charge unless we returned it early. Extra drivers cost about $15 per day, which is cheap. In San Francisco, AVIS does not charge for an extra driver.