I took theses a while ago but still I think it is really cool!
It is just basically a shopping baskets on steroids (with 4 wheels on them). I found them very easy to move around. All four wheels is able to turn unlike the shopping carts where only the front two turned and the rear two are fixed. This is the first time I used them in Toronto. Not even the T&T or any big store supermart (Loblaws) have them (correct me if I’m wrong). Most people I see grab the basket instead of the carts. The baskets is fairly deep its like 1.5 size of the normal baskets. I think it is an awersome idea. The supermart doesn’t have to worky about customer not brinng the carts back to them because with the basket you leave them when you go to the cashier. The supermart I attented was South of Steels Ave E and east of Warden Ave