We took a plane from Chiag Mai to Sukhotai with a stop in Bangkok. We were surprised to see that there was a lounge in Bangkok for Bangkok Airways-travelers only. With free food and drinks. That made up for the cost which wasn't high but wasn't low as well.
Friendly staff, refills and OK-food on the plane.
We also had an issue where we booked with the wrong name, we sent an email which wasnt answered in time but the office at the airport compesated this by changing the name free of charge.
Would book again!