As a travels, it is a well organised one.
The only luck you need is to get a good bus on that day.
If your lucky you should get the usual route bus, else a spare bus spoils your travel as it is below par standards than the regular one.
But the bus punctuality needs to be on time and this is a concern.
The major draw back with KPN is the parcel luggages consume more time to reach your destination on time.
If it is a sleeper Bus, then you add maximum 2 hours extra to reach the destination.
They stop is 3 places of 40 minutes each for unloading and 1 halt. So add up all it is 2 hours extra time of the said time in the portal.....
This is the bad time organisation about this travels, otherwise your travel is fine in a seater bus.