Dear, Ryan. You seemed happy during your stay. And I made my best to offer you the cleanest house and the newest house in the area. I built the house with double insulation for the basement ceiling,although it can not be 100% soundproof.Not even in other houses,my house like other houses in Canada of the same type,is a single family residence ,assuming when people are staying on both levels , they are using common sense of not being loud with respect to others. Im so sorry that that upsets you, but you new before coming about other guests staying in the basement.
In regards of location, Toronto is a huge city and it takes a lot of driving to get somewhere from any place,at least you live in Downtown near Subway,but then the price for your vocational rental will be much higher.
I can add to that that you were a good guest, and just say thank you for taking care of my place and leaving the house clean on the day of your check out.
If you ever want to visit Canada again I would suggest you to rent the whole house to yourself,not just upstairs.