I had the WORST experience ever with Economy Rent-A-Car. I will never rent from a non-name brand company again.
First, it was very difficult to reach the number for them to pick you up via shuttle. Once you were picked up and taken to their office, it was a dumpy office with one guy working there. It took over 1.5 hours to get out of there from the time we arrived at their office.
I had requested a child seat in advance and they have broken and dirty car seats. If we hadn't already spent so much time there, I would have gone back to the airport to rent from another company as I wondered how safe the car seat was that they provided.
When I was paying, they told me I had to pay an additional mandatory rental insurance beyond what my credit card provides and that Canada requires it. I looked online and couldn't find any other rental agency that requires it. When I went back and told the guy, he explained that the other companies include it in their rates but Economy doesn't so they are the least expensive - WHAT A SHAM.
We lost hours of our trip between waiting for the shuttle, waiting to get the rental, and trying out the different horrendous car seats. Never again.