Personally, I'm not a huge fan of the "look" of this building. I get that back in the days it was considered "modern" and groundbreaking, but it hasn't aged well. The "spaceship" portion contains the city council chambers...where back in the day, Rob Ford danced.
The two towers which surrounds the main portion are just offices for overpaid city workers.
I prefer the old city hall (next door), but that's strictly from a visual and historic standpoint.
Huge underground lot....usually finding parking is not a problem here.