Are you guys using dealer, independent mechanics, or DIY? I've always done all changes of all fluids myself, on every vehicle. But I'm reaching the point in life where I'm just getting tired of playing driveway mechanic, with a creeper on asphalt in all weather. I don't have a lift, or a great place to install one, so everything is done on ramps or jack stands.
Trouble is, my dealer seems to have great tech's who they assign to complex problems, but the biggest idiots on earth who get put on things like fluid changes. I have seen them screw up simple things you wouldn't believe, unless you saw them with your own eyes. So, lacking any personal connection to the area in which I live, knowing a good local independent shop, I end up doing everything myself... or not at all.