Pros: Surprise to have total luggage weight counted as a total. One of my bags was 2 kilos over individual 23 kg limit but didnt have to open it up and redistribute weight among other family's bags.
Cons: Boarding in a little caohitc but that's the norm in Brazil. They call all passangers at the same time to form 3 different lines so everybody is standing waiting for their turn getting in into the plane. You're better off waiting till the line is not so long since everybody has to be seated in order for the plane to leave.