I've had a number of 4Runners, beginning with my first in 1994. My wife and two daughters each currently drive 4Runners (I'm in a Tundra).
A few years ago, a trusted Toyota service advisor made a comment to me about our Japan-manufactured 4Runners (paraphrased): "We can tell they're just screwed together differently."
Once I had a leak around a sunroof. Repaired/made good under warranty.
Maintain em. Buy a warranty for your [fill in your favorite here - Jeep, Dodge, Chevy, etc] and you'll be fine with the 4Runner.