1 day van rental, on property

[PETE FROM NYC]

We are thinking about a one day van rental to transport six adults, and two ECVs to Universal for the day.
Which companies are the easiest to use?

[faline]

Both National and Alamo are on site. Hertz, I believe, is located at Shades of Green.

[adhale]

Enterprise at the Marriott World has best prices close to Disney and will come pick you up at hotel.