Great grocery in the downtown core of Toronto. Open 24 hours, which is convenient if you need something. Good selection with a pretty large bulk item section, if that's your thing. Pretty good produce section, including some organics. Plus all the usual packaged and processed goods...
Automated checkouts will get you out the door quickly. Staff is always nice.
Given the location in the middle of the city, this is definitely a 5-star option, I think.