Jakes Automotive, Royal Oak, Michigan. I think they specialize in fleet trucks. They do all the work on my fathers company trucks and Cube Vans but they also do work on our personal vehicals. I got some Revos from them and gave me free rotation/allignment for life but that was a favor because of all my fathers business.
Suburban Nissan's service is OK. Nothing terrible to say about them but nothing great either. Mostly just oil changes with no disasters.
Billion Nissan here in Bozeman has been good w/ oil changes/service.