Mashed up french fries all over hall carpets, filthy linens, bathroom was under renovations, garbage under beds... You get the idea. Avoid at all costs. This was a priceline bid so we had no choice.
I've found "Quality Suites" uniformly poor, both in customer service and general cleanliness and NEVER book if I have a choice. This was confirmed again with the Mississauga property. The other Toronto Airport property (another Priceline bid) is also very run down and dirty (stayed there spring 2006).