My girlfriend and I spent 4 nights at the Clarion and the stay was a very pleasant one. After reading many bad reviews we were really worried what hell we might experience but we were surprised very positively. We stayed in a newly renovated kingsize bed room on the 4th floor and it was great. AC, nice bathroom, flatscreen TV and this awesome bed. The young staff was very friendly and always helpful. The breakfast, which is included in the very low price, wasn't the best but with croissant, muffins, toasts, eggs and apples good enough. Located directly next to the subway trips in Toronto are no problem. Most of the interesting stuff was in walking distance (under 5km).
I would stay there again and can recommend it (make sure to get a renovated room though).
Additionally CAA/AAA members get 10% off.