Charged extra for "mandatory" insurance with no explanation
Pros: The car itself was fine.
Cons: When I arrived in Bergen, Norway, to get the car, I was charged an additional $167 for "mandatory" insurance, despite the fact that I had selected insurance when I made the original rental agreement. I agreed only because I could not rent the car without agreeing, and my itinerary depended on having a car from that day.
Immediately after returning to the US, I researched the "mandatory" insurance, but even Avis was unable to tell me. I am currently in a dispute with Avis through my credit card company.
I also received an additional charge of $25.43 with no explanation. When I requested on, Avis sent documents in Norwegian rather than sending docs in a language I can understand.