I flew in it twice to France, once to the United States. Air France couldn't fill the seats at the ridiculous price, and so they offered Americans flying business class a one way upgrade.
It made me think I was pretty cool.
The cabin was the size of a bus, and if there was anything remarkable, it basically was involved with the altitude; one could see the curvature of the Earth quite clearly out the window, but of course that altitude had profound environmental problems associated with it. It was
Flying it to France sucked. One left JFK in the early afternoon EST around 1 and arrived three and a half hours later in Paris. By the time one got one's luggage and through customs, and a cab to a hotel it was around midnight because of the time difference.
It was, biologically, however early evening. For an insomniac, this is a disaster, jet lag supreme.
Coming back to the US, it was OK, since one had the feeling of arriving before one left, but the real issue had nothing to do with any of this.
The real problem was environmental. Happily the aircraft was largely an economic failure, because if there had been a huge fleet of them, one shutters to think of the environmental consequences.
I hope this idea withers.