.....and even when it was popular, Olympus were much less of a default choice than Nikon and Canon.
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OlyMan -
I THINK it was more of a Problem-Issue-Stigma back when Canon Vs Nikon and Film were what Photography WAS.
Now that film is an "Obsolete Technology" i think everybody knows that most of those cameras were very well made. People still have their Favorite/Preference of course.
Nikon hit a home run with their Model F, was it in 1959-60, and by the time other camera makers "caught up" i think Nikon had become the default standard.
It happens with many products in many fields. Take construction for example. There is NO TOOL called a Skilsaw, it is a worm-drive circular saw. But Skil was the early leader and became the standard for many years.
There are many capable circular saws from other manufactures.
Being "First" can often be a Huge Advantage over the competition.
But Anyway.....i own 2x OM1n. I am in process of having them both (eventually) put straight by that Zuiko Guy. Is his name John Herman.? He has quite a long wait list as he does camera repair on a part-time basis. But he really seems to know the Olympus OM, and i have other 35mm bodies, so i am willing to wait.
I also took a chance on a 300 dollar OM3 from Ebay. I sent that to another Tech that advertises on APUG. He said it is basically a good camera ad can be put back to level. So i think i got luck with That Gamble.
I only have a limited experience actually using the ones i own.

.......but they seem to be a great SLR.
Good Luck With Yours