I was kid, newly and deeply engrossed in photography when the M5 came out. I soooooooo wanted one. But the $948 for the body and 50mm f/1.4 Summilux was way outside my means. So I had to "settle" for a Nikon F Apollo Photomic FtN and 50mm f/1.4 Nikkor for a whopping $300.
Now many decades down the road, a few years ago, my M5 lust was satisfied when someone sold me their 50 Jahre "Jubilee" edition. I promptly had DAG rehab it and it's now a regular driver.
I cannot fathom the hate for the M5. Sure, it's different than the traditional Ms (which I also use) but - given its time - it is such a wonderful piece of photographic innovation. Moreover, it's more like an conventional M than not. The only thing really cognitively jarring about it is it's size and weight - it doesn't quite feel like a "normal" M. Maybe that's why people didn't like it, I dunno. One thing is for sure, the Japanese loved it. So much so, that there was apparently one last run of M5s made just for the Japanese market. Bless them for making these machines available for future purchasers.
But that meter was years ahead of the pack. It functions like a well calibrated spot meter and mine is dead on. Name any other 51 year old or older piece of machinery that still works like new ... well, I can, my IIIf, M2, and M4 all fit that description. My knees, not so much 😉
(I still have an Apollo F, though not my original one. It and its meter are still running strong too.)