I've updated the Wiki regarding the LHR lounge so that there are now links to the two basic pages on the QR website with information about the LHR lounge.

The QR LHR lounge is in T4, not my favorite terminal to start with. In terms of décor, I found it pretty much the same as the CDG lounge. The dining room is a bit darker and more formal than dining at CDG; but that's undoubtedly due at least in part to the fact that the exterior walls in the dining area at CDG are all glass, making for a bright, airy feeling. IIRC, the tables and chairs at CDG are white, adding to that feeling.

I found the food at LHR of the same relatively high caliber, and the same excellent and solicitous service.