I use Ed Martin for my service, on a recommendation from another GTR owner, and have been very happy with them so far. The GTR tech seems to know his stuff and took the time to discuss the car with me, especially on the 1,000 mile service. As far as buying a car from them, can't help you with that question, bought my GTR in Pennsylvania. Took my car to Tom Wood Nissan for a tire puncture and even though they say they are a certified GTR shop, they couldn't balance the wheel with their equipment and had to send it down the street to the Lexus dealership. Hope this helps.