I'm not sure whether I used the Mississauga or Etobicoke one, but they belong to the same company so here goes my review for the service in general:
Total scam.
Online and through phone, the company charged me a cheaper price, while on the day of the driver charged me $7 more. While it is not a large amount, the driver's lack of integrity made me call up the company, after which they claimed they did not have any record of the transaction nor did the taxi that took me to the airport ever drive me there. In addition, they claimed that I must've gotten on the wrong taxi. When I checked my credit card bill, it linked me to Aeroport Taxi & Limousine though.
The terrible customer service, along with the driver's dishonesty, ensures that I will never use this fraudulent company's service again.