Last time I was at DPS (not on CX), I saw most of the lounges (atleast Deva and Prada - think there are a couple more) have CX's logo on a banner outside, much like the Premier Lounge. Not sure, but i'd suspect that CX issued lounge invites would be gladly accepted at these lounges as well.

All of them accept Priority Pass as well.

The Premier lounge is decent - just that its tucked away in a corner at a bit of a distance to the gate CX seems to be using.