This is wonderful news! I will be in SP next week and mostly on my own, so I will add this to my list of things to do.

this Friday late afternoon I saw the double decker bus on the streets (it must have been the 4pm departure)... however, it was NOT on the regular weekday/Sat route, but rather on the Sunday-only route (which skips Av Paulista)...

dont know if it was a one-off situation; but I would enquire when boarding about the route, particularly if you plan to get off at the Av Paulista stops. (or use the real-time locator app if you plan to board on Paulista)

it is a brand new service and website says it is "experimental", so there may be some tweaking around taking place.

update:

these are the places which allow free entry with the SP Sightseeing bus ticket:

Pinacoteca

https://www.tripadvisor.com/Attraction_Review-g303631-d311969-Reviews-Pinacoteca_do_Estado_de_Sao_Paulo-Sao_Paulo_State_of_Sao_Paulo.html

Museu do Futebol

https://www.tripadvisor.com/Attraction_Review-g303631-d10023882-Reviews-Museu_do_Futebol-Sao_Paulo_State_of_Sao_Paulo.html

Museu Catavento

https://www.tripadvisor.com/Attraction_Review-g303631-d1793914-Reviews-Catavento_Cultural_e_Educacional-Sao_Paulo_State_of_Sao_Paulo.html

MAM (@Ibirapuera Park)

https://www.tripadvisor.com/Attraction_Review-g303631-d317812-Reviews-Modern_Art_Museum_of_Sao_Paulo-Sao_Paulo_State_of_Sao_Paulo.html

Museu Afro (@Ibirapuera Park)

https://www.tripadvisor.com/Attraction_Review-g303631-d1905420-Reviews-Afro_Brazil_Museum-Sao_Paulo_State_of_Sao_Paulo.html

Museu de Arte Sacra

https://www.tripadvisor.com/Attraction_Review-g303631-d311970-Reviews-Museu_De_Arte_Sacra_De_Sao_Paulo-Sao_Paulo_State_of_Sao_Paulo.html

Museu da Língua Portuguesa (when it reopens after the recent fire)

https://www.tripadvisor.com/Attraction_Review-g303631-d1574891-Reviews-Museu_da_Lingua_Portuguesa-Sao_Paulo_State_of_Sao_Paulo.html

at MASP, no free entry but you have priority access to tkt counter.

https://www.tripadvisor.com/Attraction_Review-g303631-d311968-Reviews-Museu_de_Arte_de_Sao_Paulo_Assis_Chateaubriand_MASP-Sao_Paulo_State_of_Sao_Paulo.html

Not much use as there are only 3 departures a day. It should be a one-bus-an-hour affair, like in London. Based on the SP system, each stopover would be a matter of hours; in London, you could see Hyde Park and Marble Arch, for example, during the one hour between buses. The system in Curitiba is also much better than SP, 25 stops with hourly departures.

I was in Sao Paulo earlier this month and had hoped to use the HOHO bus. The concierge at the hotel where I stayed said that she had not heard of it. So instead, I took Uber everywhere and it worked out beautifully. I must say that out of the 7 South American countries I have visited, the Brazilians (or at least those in Sao Paulo) have been the friendliest and the most helpful.

Information on UBER sounds interesting.Anyone know the price of UBER ?Always like to take HOP on HOP of but times seem a bit too slow.

@Brian

you can get Uber price estimates going to Uber site. just enter pickup and dropoff addresses. UberX usually cheaper than taxi.

Price of Uber is cheap, you could go from Paulista to Ibirapuera Park for around R$ 13,00 (3 km).

From Ibirapuera, it would cost around around R$ 20,00 to get to the museum Pinacoteca (around 9 km).

Uber works perfectly and sooo cheap