I’ll start this review with disclosing that the night I stayed here was the same night that a Toronto sports team made its way into the finals. Celebrations on the street went late into the night.
That said, the walls of my room at this AirBnB were paper thin. There are 2-3 other rooms along the same hallway as you, so your experience from a noise perspective is largely dependent upon the other tenants interiorly. Unfortunately, the room that I stayed in was located in the front of the house on the second floor, and my room in particular had a wall so thin that it sounded as if my window was open (it was not). This would be less than ideal for any light sleepers. If you do stay here, absolutely bring ear plugs to sleep with.
Noise issues aside, the location is excellent (on a main transit line) and the setup with a shared kitchen/commonroom is great.