Most people would be suprised that BMW (otherwise in car world usually assumed to be "high quality vehicle") is pure crap in motorcycle world.
According to a number of customer surveys, BMW is usually firmly at the bottom of the list, together with all Italian manufacturers you can think of.
Honda, Suzuki, Yamaha and Kawasaki are the most reliable motorcycle brands.
https://eatsleepride.com/c/203865/most_unreliable_motorcycle_companiesI remember reading one such survey in 2016. They measured "catastrophic failure rate" in a few categories (mechanical, electrical, etc.) over 3 or 4 year period. The best performing brands had failure rate of 13-18 %. Those at the bottom and BMW among them, close to 40 %.
BMWs have also been plagued by fork failure of various models for the past decade and a half.
https://www.change.org/p/bmw-motorcycles-bmw-motorrad-should-investigate-and-report-publicly-on-fork-stanchion-separation-issueThis is something that does not even happen to 400 US$ Chinese scooters.
How is this even possible, I do not understand.
https://www.google.hr/search?q=bmw+motorcycle+fork+failure&client=opera&hs=Sh6&dcr=0&source=lnms&tbm=isch&sa=X&ved=0ahUKEwiWicL78a7XAhWJ16QKHeMkA14Q_AUICigB&biw=1600&bih=835So, I would say that BMW "premium customers" are being pretty much sold snake oil.
I am careful not to claim something like this for overall brands, but judging by facts, BMW motorcycles seem to be outstanding - crap, overall.