Union Mondiale Exchange is a highly regarded currency exchange business in Montreal, praised for its exceptional service and competitive rates. Customers consistently highlight the professionalism and honesty of the staff, particularly Soph, who is described as knowledgeable, polite, and skilled at problem-solving. The business is known for offering better rates than many of its competitors, with one customer reporting savings of $80 by choosing Union Mondiale Exchange over another local exchange office. Another customer, who exchanged almost $3,000, saved $100 compared to their personal banking institution. Customers appreciate the convenient location of the St. Catherine Street branch and the seamless exchange process, even for larger transactions of up to $10,000. The staff is commended for their warm welcome, patience, and overall excellent customer service. Overall, Union Mondiale Exchange is widely regarded as one of the best places for currency exchange in Montreal, trusted for its fair and transparent practices, competitive rates, and exceptional customer care.