I will be test driving, and finalizing a deal on a 1 owner 2012 Pathfinder S at a local, reputable dealership. I've never owned one of these. I was a big Trailblazer guy for years, but, of course, they don't make those anymore. I believe this will be a nice substitute.

Its only got 25k miles on it, so I feel pretty confident, but can I get some feedback on where/what to look for when I do look it over? I'm a shade tree car mechanic (former Harley tech), so I certainly know my way around the vehicle, but allow me to pick the brains of those who have owned these before.
What to look for in a 2012 after 4 years?
Thanks!
Chuck