I love the North York Public Central Library, they have many floors of books, everything is well laid out.
Perks:
1. Many Floors of books.
2. On the subway line, you do not have to go outside to get here from the Sudbway, it can be a little adventure to find your way to it without going outside, but if you know the area it is fairly easy.
3. They have rooms that they rent to different authors/speakers that hold different talks here, most of which are free.
One of my favourite Personal Finance Authors Derek Foster had a talk here about a year and half ago that I went to attend, the room was nice, had comfortable chairs, the event was free and because of the design of the room it was easy to hear him even though I was sitting at the back and he had no microphone.