Great tip, this is the all feared issue that people will have and it sure helps to have a little guideline to follow in order to steer clear of the issue.The biggest issue we've seen is a problem with some of the late 2013 and 2014's having a transmission shutter problem. If you search this forum you'll see quite a few discussions on this problem. Other than that, the car is pretty nice. If you decide on on this vehicle, I'd check to see if the car had the shutter problem or if the transmission has been replaced with the latest transmission.
There apparently is a class action suit against Nissan for the transmission problem with the Pathfinder. Here is the link to that item: Nissan Faces Pathfinder Transmission Defect Class Action Lawsuit