Rafa gave us a nice tour, he is knowledgeable and a good professional. He explained the history behind some key places and some of the ongoing societal situation in São Paulo. Unfortunately he also gave us frequent pro-left speeches and blind blaming of all the issues to the nasty Brazilian far right. A guide should be like a journalist, neutral, and stick to give facts on all dimensions (far to right) and not biased opinions. A tour is not meant to hear political propaganda.