So this place is actually 10 minutes walking door-to-door from the airport. ZQN is super small so getting out of the airport is no problem. I walked from the airport with a laptop bag, a small suitcase, and a 65L backpack with no problems.
The place is also about a 15 minute walk from a supermarket and a 15 minute walk the other way from the Queenstown Hilton, where you can catch a water taxi into the town center (although it runs infrequently, so check the timetables!). There’s also a bus stop at the airport (10 minutes walk away) from which you can go into town center; the bus comes every 15 minutes or so and takes about 20-25 minutes to reach town center.
The room was very clean and the ensuite is huge - plenty of space to leave your bags if you don’t want them crowding the bedroom.
Lastly, if you go out the front door, turn right, and walk about 3 minutes, you can see a great view of the lake, and it looks amazing at sunset.
If you want to be close to town center then maybe this isn’t the place for you, but I found it super convenient to be right next to the airport.