Amazing. From the time I walked into the place, I knew it is where I will be taking my BMW for service now that it is out of warranty. They are constantly in communication with dealers as they diagnose your vehicle, just in case warranty work is still needed. From the front desk to the shuttle driver, kahlers is the best shop in the tri-valley area for euro car repair and maintenance. My car drives like it should, now that Kahlers maintain it. Great crew of guys in that shop!