I frequent this Winners since it's on my walk home from work (I usually dream up something I "need" about two seconds into my walk). I actually prefer the selection at the Yonge and College location, but that place is a zoo and out of my way. The line ups here are much shorter (tip - they have checkouts on the 1st and 2nd level) and don't make you want to rage out.
I had a return to make here yesterday and I was super impressed by how painless it was! I had accidentally bought the wrong strength of mousse ("Strong" instead of "Lighweight"...makes a helluva difference - it was like putting concrete in my hair) and was really worried that they'd make a fuss since it had been opened. I nervously approached the returns desk and started to bust into my long drawn out concrete-hair-tale-of-woe and the cashier just stopped me and said it wasn't a problem. Anyone who has ever tried to make a return before will appreciate how easy it is here!