 The QX4 has been very reliable for me, but it's not my everyday drive vehicle. Ride is real rough in the back and the cabin is a bit small, but at the time that i purchased it, there were not a lot of options in mid-sized SUVs. For a vehicle that mostly sits in a garage, around 6 yrs old it has had a lot of rust issues, mainly behind the fender flares and the running board. Infiniti would not do anything for me and wanted $1100.00 for new running boards. So I had a body shop redo the metal for the running boards for around $200.00 each. I do think I will by infiniti again, because they did not stand behind the rust guarantee. A $40,000.00 vehicle should not have rust that much so soon. 