I'm doing one of the longest DOMESTIC trips there is in a few weeks and am flying a full-service airline.
I do this trip usually a couple of times a year and have been burned by Jetstar one too many times, pre-Covid I made the decision to just pay the extra and be done with it. Never regretted it.
Some of my family still insist on Jetstar even though they can easily afford the alternatives, and it's a never ending tale of delays, cancellations, lost luggage (on DIRECT flights?!?!), broken seats and misery and tears.