This library is pretty huge. There are multiple floors, comfy chairs, descent WiFi, and clean washrooms. There are few study rooms if you want to reserve one for group study sessions.
It's really close to the food court in case you get hungry or need some coffee. Or you can walk to North York Centre for even more distractions!
Parking is a headache here especially if you are trying to stay for the whole day. So take the bus / subway or just walk here.