During my brief HD ownership experience, which included breaking down on the side of the highway, I have to say I was super unimpressed by what passes for Harley service.
It had a design flaw where the battery would drain after 4-5 days of not being ridden. There was no official fix, but some home remedies such a wiring a big ass switch to the battery to break the circuit, because...character.
Also take a look at this medieval steering/geomerty adjustment test. My HD had a nasty clunk in the steering head. Rock-and-Roll HD wanted to charge me $300 for this test, rather than replacing a defective piece inside the steering head. I had to bring them the actual HD TSB to show them what needed to be fixed (aluminum sleeve in the steering head would deform, the replacement part was steel).
The service manager got kind of shitty with me..."Listen we've been doing this for a long time and we aren't replacing parts until we do a fall away test." Me "what the fuck is a fall away test?"