changing EUR to BRL in cambios in Rio
The rate was almost exactly the same as the forex spot rate that day. There was a 5% spread, but all the spread was on one side. This seems to be how it goes with harder vs softer currency exchange: all the spread sits on one side. (EUR is second-tier and BRL is third-tier). There was a queue, with tickets. The cashier counted the money under the counter, out of view, and then handed it over. Every other teller I've dealt with counted it out in front of me. But when I checked, the amount was correct. I got a little paper receipt with a few numbers on it in typewriter. No id was required, for once. The resulting bumwad from the bank of toyland was well-used, grimy and smelly. It was mostly in 100s, with a few 200s.