What do the ULCC's do well?

Beat down the employees with low wages, outsourcing, dragging their feet on contract talks and taking a "you can routinely **** off a once a year flyer without much long term repercussions, because there's more just like them to follow" attitude?

ULCC's offer two things to the public, low upfront fares (spiked with fees) and cherry pick leisure point-to-point routes that can fill up a 320 at least a few times a week.