This airport is a huge disappointment all the way around.
Really surprised at how crazy this airport is as it's hard to figure out how to get around.
I rented a car so I turned my car in expecting to be able to walk in and see directions to my Terminal and Gate.
Not an easy task but thanks to a flight attendant I was able to navigate my way through the airport. Even in her rush she was helpful.
Overall the airport is old and in some places they are remodeling... be sure to eat before you come to the airport as they do not have very good food options.
The restrooms are not clean and smell especially the one in Terminal 3 by Gates A16-21. Really disgusting! The smell reminded me of an outhouse.
Note to self, never travel to Toronto again!