Visited the Happy Valley and Lake Pleasant Parkway service center in late August 2015 and I'm a very happy first time customer. Unable to get in to my usual mechanic due to needing transportation to and from service center, which Wilhelm happily provided, I contacted this location to make an appointment for 100,000 mile service on my 10 year old Yukon before an upcoming road trip. It was a routine visit for my Yukon with the exception of an ongoing knocking noise coming from behind the glove box area that for over 4 years and could never be identified by my longtime mechanic. Happy to say that Wilhelm took the extra time to find the noise and successfully fix the problem at a reasonable cost. I was back on the road in no time with a smooth running, knock free noise ride. I will be back for future service here.