I'm located in Houston, 20 min from gsg that supports roland. Last week I had my first out of warranty and warranty experience.
Out of warranty - I sent an email on Sunday, Tuesday the tech did the repairs (new head etc)
Warranty - while the tech was on the non warranty job I let him know of the warranty repair and he did it next day. (Simple roll holder alignment)
The local dealer (gsg) answers all questions fast, I have a friend that owns a Roland with similar experience with the same dealer. I'm in a large city with 2-3 techs 20 min away from my shop so can't get any better realy