Most Nissan dealerships are just like that. A Nissan dealership near me has over 400 reviews on Yelp and the average score out of all those reviews is 2 1/2 stars out of 5 lol. The techs @ Nissan are usually new kids straight outta uti and they mostly work on new Sentras and altimas. You go there with a 2006 g35 and they're literally clueless unless they got a z/g like you.

My cousin works at a Honda dealership in the parts department and says he would never bring his car in to his own dealership for any type of service because of what he's seen at the dealership and the shyt they do to make a buck. Just a fyi. Sometimes your better off going to a private shop.