I took an Uber from home to Brasilia Airport in the morning. As I was travelling with just a carry on, I OLCIed my GOL flight to São Paulo and waited at VIPs Club Lounge, which is a great domestic lounge (I have mentioned it before here). It got even better because they have added two express lounges on each pier of the airport, apart from the main one, which are closer to the gates. They aren´t as big or have the same food offerings as the main lounge, but are great to wait for your flight call without having to rush through the airport.



GOL flight landed on time at Guarulhos Airport and I had a 6-hour layover until my flight to Buenos Aires. Qatar check-in counters weren´t opened yet, but with no luggage to check, I OLCIed again and cleared security and immigration control.
The new terminal 3 in Guarulhos has five lounges (Star Alliance, Executive Lounge, LATAM, American Airlines and MasterCard). I had access to the first two with Priority Pass, the next two because I was flying an Oneworld business class and the last one with a MasterCard Black credit card. With 6 hours to kill, I went for a lounge hopping.
First, I went to the Executive Lounge, which I think has the better food offerings and a reasonable space.





After grabbing some food, I went to the Star Alliance Lounge, which I think is the nicest of the airport. It has the best décor, good food options and the best drinks, with a barman. Usually I don´t care for alcohol, but this lounge have great caipirinhas (made with vodka or cachaça, which is my preference). There were ginger caipirinhas before, but this time was made of grapes, excellent as well. A few more bites and two caipirinhas later, I was in excellent mood.







Next, it was LATAM lounge time. It has good space, décor and food. There are shower rooms (also on Executive and AA Lounges) and four sleeping couches in a separate room, without any linens, pillows or privacy from each other (and usually are all occupied). I took some newspapers to read and, after a while, left.







Next in line was MasterCard Lounge. It is the smallest one and tends to get crowded with the night departure flights. The buffet options were very reasonable for snacks.





The last one on T3 was AA Admirals Club. For an outer station lounge, it has lots of seating options and a decent buffet, with hot food options. Food offerings on all lounges are quite decent, considering they are all business class lounges.





Overall, I would rank:
1- Star Alliance
2- LATAM
3- Executive Lounge
4- Admirals Club
5- MasterCard

Closer to boarding time, I headed to the gate, where Qatar 777-300ER was already parked, along with a Lufthansa 747-8 that I would take coming back home. There was also an Emirates A380 that has started flying to Guarulhos this March, which I´m eager to fly again with my family to the Maldives or Japan. I just need TAP to run a 100% credit card transfer bonus again for that.



Anyway, as I checked-in online, I was called over the PA system for a document check. I got a paper-boarding pass only to Buenos Aires and was told I´d get the others there. They were confused why I was flying to Buenos Aires and back, and not straight to Doha. I just told that I like flying, so the more, the better. 
Boarding started 30 minutes late and the business class was quite empty, with less than 1/3 occupied seats. Service started 40 minutes after takeoff and the menu was very reasonable for a 2,5 hours flight. I took advantage of these added flights to catch up on some movies I´d like to watch and fill my stomach so I could sleep right after taking off from São Paulo to Doha.



The breadbasket served was very good, but the gnocchi was awful, completely tasteless. Dessert was ok.



After landing, I told Qatar representatives, waiting on the jet bridge, that I was doing a turn around on the same flight and asked how I should proceed. I was kindly escorted through security, directed to LATAM lounge in EZE, and told that boarding would start in one hour. As in GRU, I´d also start a lounge hopping in EZE.