I used to listen non-stop to this album in college, late 80s. Listening to it after all these years, it is still exciting but I don't think JMJ is going to age well. This album with its Chinese street sounds and all the mythology around the trip was heady and amplified the psychological impact. But it also sounds a bit plastic, too much mascara, if you will. I couldn't loop listen this again. Once in a while, sure. I…
Thematically, they were trying to address the conflicts and tension between us and the technology we create. I had forgotten about these themes from their "Radioactivity" album (from 1975), but they brought it up to date by dropping "Fukushima" into the lyrics as sung that night. It ended up sounding profoundly prescient, like so much of their other work.
I don't think JMJ has anything like the depth that Kraftwerk has. Like you, I've been listening to both since the mid 80s - I had Magnetic Fields on vinyl, but Zoolook on CD. Jarre is mostly simple entertainment for me now, but Kraftwerk makes me think.