We did this flight yesterday: Qf 27 --> KL 702. With flight retimings, our transit at Scl was down to 1 hr 40 mins....meaning any delay on the inbound would risk our connection at Scl.
We departed Syd 5 mins late but arrived in Scl 30 mins early....it took just under 30 mins to walk at normal pace to transfer security (they xray your bags) and find our way to the Skyteam lounge...near gate E1...need to take lift down 1 level. Nothing special food wise at this lounge but had clean toilets, bottled water to take, somewhere comfortable to sit and free WiFi.
Luggage was checked through to Eze from Syd and priority tags worked as our bags were amongst the first to appear.
Hope the return goes as smoothly