Pretty much all there is to see in Toronto But is the largest city (and thus most relevant) in Canada. Seems people here really want it to be seen as a world class city, but we're on the tier of Chicago rather than NY.
All considered, it's not a bad place to live, although it is getting ridiculously expensive to live in due to a lot of reasons, things like preferences for single family dwellings, demand (although some people are stupid in how they MUST live near the core). Prices aren't as bad if you go into Etobicoke or Scarborough (two former cities that were eventually merged into Toronto), but the problems there are your jobs will likely be downtown and public transit offered there is a joke.
A lot of immigrants ended up here, so at the very least you can usually find food from all over the world here (yet, no place has good doubles).