Some good reason to say the bus is very bad,
1)Passengers who are booking though online are at risk, because same seat will be allocated to another passenger who are not booking at online, So one of the passenger have to stand still he/she get a vacant seat.
2)If passengers booking for a NON A/C, Then in the whole night they were keep on changing the buses until a bus is full.
3)Especially, who want to travel in a A/C then they have to carry their own blanket,etc., because the temperature is set to 22 degrees in there complete journey.
4)Last but not least, Its become common to miss the passengers at the picking point, even in night also.Here Bus driver or no one will make a call to passengers. Until passenger they them self make a call to driver then he will say to come fast bus will wait in the next picking point,it doesn't matter how far it will be. Here why passengers were missed the bus because they have booking for a NON A/C bus and they are waiting for the NON A/C bus only but VOLVO A/C will come.