Qantas Club members and Qantas Frequent Flyer Gold and Platinum members get complimentary access to American Airlines Admirals Club lounges in the USA when flying on an American Airlines flight.
The Admirals Club at Laguardia airport is a fairly average lounge. Free refreshments (tea, coffee, juice and soft drinks) and some very basic snacks (but no actual food offerings like the Qantas lounges in Australia). The free wi-fi was fast.
The Admirals Club at Laguardia airport is located airside in Terminal D.