You can't beat the "roo" clubs! I've been in them three times in my lifetime travels and never had a bad experience. Tell me you weren't impressed with the friendly spirit their employess seemed to have!
I last used the club in Alice Springs. Simple at the time but they had showers and privacy rooms. The club in Honolulu - quite nice although the day I was there the AC was out, humid and everything was sort of dripping. And the club in Los Angeles, where they share with Cathay and British Airways - quite crowded. If I were going to travel down under quite a bit, I would definitely get a membership.
The other LA club is the joint with AA, which I've never been in, (unless I have that backwards, it's been a while).
But, you had every right to be pleased, I know I was.