Well stated (even though this post is 2 years old) - both about the lens and the M. I love the little 22 MM, but alas, I don't use it much anymore. For me personally, I need IS so I tend to use the other lenses that have IS (getting older now myself and I need the stability). But when I bring a tripod or monopod, then the 22 comes with me.
As for the M, for general photography scenarios, this one camera still punches far above its weight. I realize it's all very subjective, but to me the M feels great (I added the 3rd party metal grip) and looks attractive. But it's that gorgeous color tonality which makes me smile (along with the M2 - which is a tad smaller than the M).
That's why the M (and 22) are stayin' in my vast collection of goodies.
You know, as an aside, it's funny in that many folks shoot with different brands of cameras - me definitely included within that demographic. And I love shooting with them all as each brand something unique to the table. And if you're of the mindset that evaluates everything with the "glass is half empty" mindset, then yes, you can find many things wrong with the M (like with many other cameras also).
But when you just go out and start shooting - again, in general photography whether it be scenic, street, family gatherings, architectural and real estate, etc - you come to appreciate the M for being the gem it still is.
Another inexpensive model that really has surprised me in a most positive way is the M10. Although considered an entry level model, I am amazed at the gorgeous imagery it can capture - albeit the color tonality has shifted more towards more yellowish/greenish hues in certain environments (the M3 also). Not having the M5 of M6, I can't attest to how much the color tonality has changed with those models.
Now if only Canon could translate all those EF-M patents they've submitted over the past few years into actual releases, then lots more folks would enter the fold (IMO, that is). Heck, I'm still crossing my fingers about Canon releasing a reasonably priced, yet quality lens that has roughly a 24-120 MM equivalent as I've found that focal length to be outstanding for a "leave it on your camera all the time" lens.
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Sincerely,
Bernd ("Ben") Herrmann
Fuquay Varina, North Carolina USA