I am going to take the bus to Khon Kaen (and I DO know it is a long trip - and I might fly on the other way). As far as I have been able to find out there are 2 companies having VIP buses to KK from Pattaya - and that is Chan Tours and 407. They both go at approximately the same time - and both uses 9 hours for the trip. Chan Tours is 100 baht cheaper - but both are really cheap so that is not a concern. Can anyone here say which bus is the nicest - or do I just have to trust that since 407 cost the most it is also the best ?