Just reading through the different reviews here and you can get an idea how the audience is divided (or lost) accusing the series of being biased to the left or right political parties propaganda. But this is because the country's population is divided and blinded now and cannot see anything beyond their political parties agenda and ideologies
What the series show in reality, specially in the second season, is that corruption in Brazil dates as far as democracy and that, unfortunately, it is not an exclusivity of the left or right parties, but all over the country's political system.
But by doing this, saying everybody is corrupt, it fails to please both sides interests, because if corruption is all over it, there are no victims or villains, everybody is to blame.
But contemporary Brazilians are unable to see this, just because the polarization is convenient for both sides, and politics became passion, just like soccer in Brazil, with supporters hating and accusing each other all the time, unable to see or recognize their own team mistakes.
As for the series quality, it is a quite enjoyable well crafted and well acted series, although it lingers the events a little too long sometimes for dramatic purposes, or the lack of new events in the Car Wash operation.
Watch it with an open mind and get over your own political convictions.
