Never used Quadriga before but im gonna need to I suppose. TBH.. I dont trust any of these Canadian exchanges. Well that's not entirely true. I do trust CanadianBitcoins. They have a real office where you can go in and complain if something goes wrong. Having that alone puts them at the top for buying or selling btc in canada. I just wish they weren't a fixed rate exchange. Maybe they'll step up here and open a real exchange soon. Lord knows Canada needs one!