I always found this lounge to be a favourite, especially the TV at the end where my family would camp out and watch some football (round ball) game and just relax at the end of another US trip visiting the in laws.
For me, the reason this lounge worked, was special and unique, was it was one of the few where everyone is on the same zone. We were all flying to LHR, so were mostly all in the couple drinks, relax have a meal and get on the plane mode. Whereas take the CCR(LHR) people are arriving from long haul, off on short haul, departing on long haul, time zones often messed up and people are not aligned on their sense of time and journey - no people transiting everyone on a shared journey. That coupled with excellent service, good food and a reasonable wine list, just made it the way it was. I always felt I ran out of time there.
Yes, T7 was and is a dump.
I will miss it...and was always a privilege to use it.
KF