I have never heard of anything quite so horrendous. The lounge at DPS is all the way at the back, and is shared with a bunch of people (including CX).
I believe it is also a priority pass lounge.

Once your credentials are checked, you are presented with a cold towel. There is a buffet available when you walk in, and yes the drinks are self service.

If they run out of the beverage of your choice, ask and they will bring you more (gladly).

No such thing as a 2 drink limit. This isn't the Admirals Club.