I believed you’re confused which the XL class you are gonna get on your coming MEL-KUL flights.
The 60 inches 2-2-2 configuration XL class is only available on KUL – Gold Coast & HangZhou routes with the A330-300 – registration 9M-XAA (on lease, previously operated by Aer Lingus).
KUL – MEL & KUL – PER is using their first brand new A330-300 with the registration 9M-XXA ordered directly from airbus and the configuration is 2-3-2 (similar with JQ A332 Star Class) which features fixed back seat that slide forward.
Picture link: http://img181.imageshack.us/img181/8448/mao99574623me7.jpg
For XL Class passangers what you get is basically bigger seats and the rest is exactly same with economy passangers at the back :
Pay for check in luggage, pay to select your seat, pay for blanket, pay for inflight entertainment, pay for food (please take note NO outside food & drinks allowed in AirAsia flights (you may eat your sandwich discreetly while the cabin crew was away) and no free lounges.