We brought American and Canadian with us last week, with the idea of exchanging the CDN to JA. The Cambio wasn't open half the time and it was downtown - roundabout. We were swarmed by people, who literally opened the door on both sides of the taxis that stand right outside the Cambio. it was the worst feeling ever. It sorta worked out, but we were short money and it happened after we asked some guy to change some bills into smaller bills for us. Not sure where it went wrong, we just decided not to go there ever again. Use the Scotiabank... safer! And take a taxi that you are comfortable with..