Yes I have been twice. Went to Toronto and found it friendly and architecturally compelling. Went to Montreal and found it vibrant, cosmopolitan and really compelling. Canada is a great country.
Yes, I go over to Little Italy in Windsor sometimes and I've been to Toronto and Montreal a couple of times. I live in southeast Michigan about 25 minutes from the border.
About 20,000,000 visit Canada every year. About 5% of US residents do. Some go often and some just once in their life.
Have I been to Canada ? YES on many roads and flights.
Yes. I stayed there for a week. I did a run with a friend of mine, that I went to visit. He is an Ice Road Trucker in British Columbia. We drove across the Coquihalla Highway in a blizzard to the city of Hope. I had a blast.