These guys are unreal! Rob (service advisor) and Ersom (technician) did what my other Mazda dealer wouldn’t. I came in with car rattle issues on my brand new Mazda 3 2019. I took the car back to Mazda of Evanston 4 times to get the problem solved and nothing. They claimed they couldn’t duplicate the problem 4 times despite me showing it to them, and sent me on my way. I had enough and drove an hour to Crystal Lake to give these guys a try because I had heard good reviews. Rob and Ersom went above and beyond to make sure my problem was fixed. Ersom foam insulated virtually the entire car, tested each speaker individually, put all my components back together properly (something that Evanston failed to do twice), cleaned the interior of the car (Evanston left two massive smudges on my white leather interior once), filled my tank and cleaned the whole interior and exterior. Rob kept me in the loop the whole time, texting me updates over the course of the two weeks they had the car. NIGHT AND DAY is all I gotta day. Car sounds great too but I’m more impressed with the customer service! I know crystal lake is a hike from the north shore but xxxx it was worth it! Thanks Rob and Ersom!