I traveled coimbatore to paramakudi in kalamoorthy travels with cost of Rs.350/- with comfortable journey. Bus quality is good. I also booked the return ticket in arthi travels with cost of Rs.420/- for the same distance. Because of the cost, I thought that arthi travels may be so good compared with kalamurthy travels. But in reality, When I saw the bus in paramakudi, I really shocked. Traveling time also so high (8 pm to 5 am). In madurai, they took more time in travels office place, because of ticket booking confusion of some persons. In future this may be avoided.
My suggestion is either the bus quality to be improved or cost may be reduced.