Tansantiago or the yellow buses?

The public transport that I use often is Transantiago and the subway.
It takes me two hours to arrive at the University because I live really far from there.
I think transantiago have good and bad points, but we got used to that way to travel in Santiago city.
The good things are: Is easier to pay because the BIP card. Another good thing is that the Price of the fare doesn’t change if we go from a transantiago to another bus or to the subway before two hours from the first pay.
The bad things are: There are too many people who take the public transport, but there aren’t enough buses for everyone. There aren’t enough trains either in the subway, so the people who take it suffering in the pick hours because everybody are really cramped to each other. Another bad point is that sometimes the bus doesn’t come, and the people must wait for a long time and there’s no chance to take another alternative.
The old public transports haven’t anything to envy to Transantiago because it doesn’t work perfectly, just like before.
The old public transport use to be the ‘yellow buses’. They were really ugly and dirty, but it had good thing too, for example: We could travel from one commune to another one without moving from a bus to another.