The bus system has to make pretty aggressive tradeoffs in order to be useful to commuters. You can't make it stop at every block in order to make it take less walking to get to the bus stop. Similarly, you can't have parallel lines a block apart. You have to limit the service area so that you can afford to run busses every 5-10 minutes. And you'll want to improve streets so that busses can run down the center and pic…
It received massive criticism when it was constructed, as there already was a functioning network and the project was quite expensive compared to other bus lanes. It did become a massive succes, as its a viable alternative to the train for commuters due to the shorter travel time.
They are in the process of replacing the diesel busses with electric busses, first on the short routes and in 2020 on the longer routes.