I'd like to offer a differing viewpoint. Visited Vancouver last year.
The food was great. We were just talking Saturday about what a great trip Vancouver was from a restaurant perspective.
Don't recall the air being particularly noticeable.
Lots of great nature. Beaches & mountains in proximity.
People very nice, I agree. Saw a field trip or day camp or something of like, first graders looking at tiny crabs on the beach, jumped off the sea wall to check it out. Little kid spent 15 minutes explaining stuff about the crabs to me. Wife was like "I cannot believe those chaperones didn't at least ask you who you were or what you were doing"
Streets were not dirty at all. In fact, saw a woman stop a total stranger who had dropped a straw wrapper & tell her "aren't you going to pick that up?!" Recycling bins everywhere.
Kitkats are safe for peanut allergy in Canada. Also, lots of things make kitkats go weird. Like when they're in the leftover Halloween candy, they taste wrong after a week or so.
Our hotel had spiffy wifi.