There was a police incident involving the alley next door and it shut down one of the elevators. The staff was discrete and did not mention anything. In our room at the end of a hall on the second floor, we did not hear anything unusual. The ac was loud, though, which usually happens in a hotel room. The view was of the roof, but, we were not in the room except to sleep, so, that was not a problem.
This was in walking distance of many attractions...Union Station, CN Tower, Aquarium, entertainment district. There is a Tim Horton's across the street for breakfast. There are two Imacs in the lobby, so do not bother buying the wi-fi. The room was very clean, despite being cruise ship size.