Pearson Airport is well accessible by public transit as well as by car. Easy to navigate, just tough to find loading spot sometimes.
Line ups for the checkins are usually long. Security checks have long line ups as well, but you can get around by trying to sneak in thru other security entrances (there are 2-3) at each terminal.
Terminals are clean with cheap food and coffee such as Tim Horton.
Duty Free shops are overpriced. You don't pay HST or VAT but still you pay more than outside.
Planes are often delayed as the traffic is huge. You can be rolling before departure for over half an hour.
Arrivals are usually better. Just the line up for immigration is usually for 30mins at least.
Positive thing is the free wifi everywhere.
Have a safe flight!!