I'm sure this has been mentioned here or elsewhere before, but it's worth reiterating based on my experience this past weekend. If you are thinking about renting from Advantage, think again. Sure, their rates may be lower online but you will end up paying more in the long run because of massive surcharges and deceiving business practices.
This is especially true of the Montreal, Dorval location.
See the following raving reviews if you need more details:
http://www.epinions.com/Advantage_Re...splay_~reviews
http://www.ripoffreport.com/reports/ripoff126799.htm
http://www.ripoffreport.com/reports/ripoff120610.htm