The F Lounge is pretty bad these days and always crowded as others have said, but the two club lounges in the main terminal are appalling these days, nothing relaxing or premium about them, especially the one at the same end as the F and Concorde lounges (can’t remember which is N and which is S).LGW puts the LHR offering to shame with great staff and a much more relaxing environment on both the F and J sides. A shout for FCO as a really excellent BA outstation lounge too (they’ll probably close it now like AMS…)