My spouse and I reserved a car on-line several months in advance, and had zero problems when we went to pick it up.
The rental office is located a convenient five minute walk from the Orvieto train station and the funicular. One does have to cross a narrow 2-lane street to get to the office, but we had no problems doing so.
We were able to upgrade (to automatic) and pick up the car quickly. The young woman who did our paperwork and brought us the car was efficient, and spoke good English. read more