Looking at the website was a complete waste of time - it wouldn't load properly and it didn't even list a location in Guelph. However, I found the phone number of a Guelph location on this site, called them, and am very glad I did.
I needed to rent a car for 2 days, to pickup from Guelph and return to the airport (a one-way rental), and was informed by the other car rental companies that there would either be a $150 charge on top of the regular price of the rental, or that they would not offer a one-way trip. Enterprise informed me that they got rid of the standard $150 fee, and that my two day rental would only be $103.00 (quite a difference from the $200+ at Avis and Discount. Budget was unavailable).
The man on the phone answered my questions and booked my reservation easily and quickly, very unlike the Discount rep who only read from a script and seemed incapable of processing what I was actually saying. Thank you Enterprise!