I've never not had an extremely disappointing experience with Apple Geniuses. Absolutely horrendous support. Completely incompetent people running down a script.

That said, I've had two trusted Apple Premium Partners that I would go to when I was still an Apple user and they were an absolute delight. Unfortunately back then I was living in a major city in Germany with tons of Premium partners, so nowadays that I don't really have a homebase and only have an iPhone I don't really know where to go for competent support.