Are Awards Nexus search results for Qantas flights reliable?

Hi, I’ve got 600K in points, looking to book MEL-USA flights and hoping to get Prem Economy to LAX and dreaming for Business return from DFW or LAX.
Looking at May 2025.
I am a Bronze Member, so I understand higher Tier QFF members get better access.

I have been searching for weeks via Seats.aero and GYOZA and the occasional visit to Qantas.com
Nothing direct, only connections via Toyko or Fiji with some legs upgraded.
I’m not keen on that.

I’ve joined Award Nexus today, and they are showing some Direct Flights MEL-LAX in May 2025, stating there are Premium Economy seats available.
How accurate is that?
If accurate, any suggestions how to access
I jump on Qantas site and they are not showing Premium Economy seats available (some available in Economy)

Anyone with experience with Awards Nexus and accuracy of information…?
And if accurate, why can’t I see it on the Qantas site…?

Thanks in advance.

​​​​​​​Dan.