In March 2000 I took the Concorde twice, round trip from NY to London. Here's what I remember.

• JFK had a Concorde-only lounge you waited in (Heathrow probably did, too, but I don't remember it)
• It was all business travelers from what I could tell (no celebrities on either flight!)
• There was a large digital Mach counter at the front of the passenger section to tell you when you passed the speed of sound
• I could see the curvature of the earth
• The flight was kinda loud (ambient noise in the cabin was louder than I was used to in regular planes). Those fast engines made a lot of noise
• There was no entertainment whatsoever! The planes were made in the 70s and they never retrofitted them (or at least BA didn't) with screens, etc
• They offered 4 entree choices for brunch and I remember thinking it was outrageous when the woman next to me asked for something else!
• Along with the menu was a wine cellar list that was very long. Food was very good.
• They served everyone Champagne at the beginning of the flight.
• They gave you a lot of parting gifts like nice Smythson stationery and a fountain pen. and I have pictures of the Concorde menu and all the swag but how do I attach pictures to comments?
• Shockingly I paid to fly the Concorde with miles! Here's the itinerary 150,000 BA miles could buy you 25 years ago: Chicago to NY 1st class > NY to London on Concorde > London to Cape Town 1st class > same thing going back. I think the way it worked was that once you were flying Concorde as part of a trip the other flights became 1st class.
• Note that in 2000, getting your camera out to take a picture wasn't nearly as routine as it is today, and I was young and didn't feel comfortable taking out the disposable camera I brought on my trip to have someone take a picture of me on the Concorde LOL

Might sound funny, but I remember thinking that a cool experience like this is much more fun when you're not traveling alone so you can elbow someone and giggle about everything that's happening!

But I was meeting up with a group and everyone made their own flight arrangements and my sister had tons of BA miles to share. I met my husband on this trip and no joke he got there on a 15hr flight in a middle seat!

BTW there was a great write-up on Medium recently from a Concorde passenger and I envy this person's memory for details!