Just moved to the BA/QF FLounge near gate 15. Always a tense moment when she scanned my boarding pass but still it blinked a nice green. No change so far.
The cabanas at the Wing can't be 'reserved in advance' I believe but I never had a problem getting one. They are about twice as big as the CCR ones with a proper toilet cubicle, shower cubicle, bath, lounger and something that could be considered a day bed. Very comfy actually. The atmosphere is more that of a good Spa whereas in the CCR I always find it cheap and not worth it. They also don't make noise like the ones in the CCR.
There is sort of an open space at the end of each so you can hear people in other cabanas. I have enjoyed the sound of sex (couples and solo performances) and really loud farting from time to time.
I must have some pictures somewhere. Let me check.