For a reliable taxi driver, it doesn't get any better than Marcos. I landed in Marcos' taxi by…read moreaccident when I was leaving Paulista Ave and immediately got a good sense about him. Clean taxi (Jetta), safe driving, quiet and pleasant, and following Waze to get me home while avoiding traffic. From this one good experience, I asked him if he used Whatsapp and whether I might be able to hire him for all the airport trips I make. A few days later, Marcos was waiting outside of my apartment after my whatsapp request, ready to take me to the airport. I've used Marcos at least 30-40 times since then and he remains as reliable and awesome as day one. He's super professional and tracks my incoming flights to make sure he's ready to pick me up from the airport as well. Marcos doesn't speak English, and while my Portuguese is only so-so, we communicate with no difficulty (thanks to my translation tool on my phone). He's even done long trips taking me to Embu das Artes (a cool artist town 40 minutes outside of São Paulo), he's driven my family from GRU airport to Ilhabela (and back!), and recently he moved me from São Paulo to Rio. Truly, they don't come any better, and more upstanding, than this guy. Best of all, he accepts cards and has wifi in his taxi! I'll never use another taxi driver when in São Paulo!