Underrated subway station. There are two exits, the exit on the South side is right on the corner of Yonge/Lawrence just across the road from Starbucks. The North exit is only reachable after walking the length of the subway platform and exits onto Bedford Park near the Metro. The subway platform is a single central platform which keeps things simple.
The 52 Lawrence bus departs from here, the 52A goes straight to the airport. Not the fastest way to get to the airport unless you're nearby. Bonus is that the bus picks up in an underground bus station rather than on the street so it's warmer in the winter (no windchill) and cooler in the Summer.
The 97 Yonge bus does not enter the bus station and picks up on the street.