>>213870801 (OP)
Very rarely.
Robarts Library is interesting. The Colonnade works because of what is around it - it doesn't stand out as being this horrible, depressing megalith. York U is pretty nice, but again because of what's around it - it's very obvious that these square concrete buildings are where you study and this offset one with the round roof is where you go back to looking at gardens , and getting fresh air and experiencing life.
I love and hate 222 Jarvis - I call it the Ministry of Love. It's an inverted pyramid sticking out of an arcade of concrete I beams with a brick veneer that looks like it's been burned. It kind of adds to the impression of "You can think for yourself when we tell you" that they never bothered naming it. It's just 222 Jarvis.