The location of the apartment is unbeatable - right next to Queen Street West and all the restaurants, bars and hip clothes stores of this great neighbourhood. If you're not too laden down, it's very walkable from Union Station and you have good access to many of the sights.
The apartment was very clean and I found it a very comfortable stay. Jon is extremely helpful - gave me some great advice for a half-day trip to the Falls and let me leave my rucksack in the property after normal check-out. All in all, a really positive experience and I can see why Jon has become a Superhost.