I was there last week. It is ok, small and very basic for an airport lounge. No showers or even toilets in the Qantas lounge. A small selection of food and drinks.

At the Qantas check in I was given a pass the Miascor Lounge which is an independent lounge near gate 9. It seems to be contract lounge for a few airlines and overflow for others as well.

But I went first to the Qantas lounge near gate 2. I asked about showers, was told they didn't have them. But to go to the Miascor lounge and they offer me another pass. As you would be using complimentary lounge passes I am not sure if they would offer a pass to Miascor lounge to you.

The Miascor lounge was a bit better. Having a shower felt pretty good. The food and drink was a bit better than the Qantas lounge. The seats were comfortable and the internet connection was fast.