Gospel, at least you know that you will pay $20 for 10,000 shares if filled in two days.

I, if placing an order at Questrade for only 1000 but filled 100+300+600 shares on the same day typically get charged $14 or so and on occasion $20, while they advertise 9.99$ trades, and this is without informing you what their commision charge will be at time of order placement.
10,000 shares even if filled on the same day could cost me 50 to $100!