Despite informing the rental company that we had already purchased full insurance through Zuzuche, the counter staff insisted on recommending their own full insurance.

The rental company had a guide who was very polite. However, the person who assisted me during the rental was not very professional, especially since he kept speaking Italian to someone else while talking to me. Most importantly, I ended up paying almost double the rental fee, which was very irritating.

Because I bought full insurance, they informed me that I didn't need to fill up the tank when returning the car; it's okay to return it empty.

Avis is considered a high-end rental company, there’s nothing to criticize.

The staff at the Rome airport counter spoke very poor English, hardly understandable. They kept pushing for full insurance, and seemed very displeased when we declined. They gave us a subpar car despite our large luggage. At the parking lot counter, they kept stalling and refusing to change the car, only offering a FIAT500 convertible, which was a struggle to fit our luggage into. I was quite dissatisfied with the service attitude of the Rome airport staff, but to avoid affecting our itinerary, I didn't argue further.