Not as good as scoot
Pros: The route, and the price.
Cons: I used them because I was in a pinch. I should have booked a return flight with Scoot instead. It is basically a flying cattle truck. With scoot you can pay for the upgrades you need to make it bearable. Air Asia X, seems to have nothing in this space which given how unpleasant the basic flight is, it would seem like a great way to make more money per traveler.