New and used 2025 Mercedes-Benz GLS 450 for sale near Milton, GA

Terry Castro at Mercedes of Marietta is a true gem in the world of service advisors. From the moment I stepped into the dealership, Terry's professionalism, expertise, and genuine care for customer satisfaction were evident. His attention to detail and commitment to providing exceptional service are unparalleled. What truly sets Terry apart is his unwavering dedication to customer satisfaction. He consistently goes the extra mile to accommodate my schedule, communicate updates promptly, and ensure that I feel valued as a customer. His friendly demeanor and positive attitude create a welcoming atmosphere that instantly puts me at ease. In addition to his outstanding customer service skills, Terry embodies professionalism and integrity in everything he does. He approaches each interaction with honesty, integrity, and a genuine desire to exceed expectations. It's clear that he takes great pride in his work and genuinely cares about the well-being of his customers and their vehicles. Thank you Terry! EM

Vadim changed my opinion of car salesmen. He was professional and went above and beyond. The whole process was seamless and the first enjoyable experience I have ever had when purchasing a car. Thanks to everyone at RBM.

My service from Andy Sayers at RBM of Alpharetta was excellent -- and continues to be after the purchase. We visited a few other Mercedes dealerships first before meeting Andy at RBM of Alpharetta; there was no comparison. Andy was patient, extremely knowledgeable and not once did we feel any pressure to buy. It was a truly genuine and consultative experience from start to finish. I now have the perfect car for me thanks to Andy and RBM.

My service advisor Christie Hicks always delivers the BEST service possible. Definitely makes any service issues easier.

Malcolm is amazing! He’s attentive and gave me great service; I got a great deal on my car

Mell Daggs was great. During the purchase process she answered all my questions and made was available after my purchase to assist with an issue I was having with the technology. I will definitely purchase with her again.

Mel is amazing. From start to finish she kept me informed. She was referred to me and my referral expressed the same. I love that fact that she will be with me for the life of my car. I have a found a friend and sister in Mel. Her customer service is unmatched.

On 7/25 we brought our 2013 auto in for service. We continue to return, although being solicited by a dealership closer to our home because of Hee Soo Hong. He continues to keep our car in the best possible shape. We just had new tires, all levels checked, our air conditioner serviced and whatever he felt necessary. Mr. Hong is a fantastic representative of your dealership as well as recognizing our needs. It’s worth the additional distance to be treated as very special customers. Thanks to all. The Polizzi’s.

I was looking at purchasing a 2021 E53 cabriolet remotely. David Olsen was fantastic and spent the time taking pictures and walking the vehicle facetime with me. While considering the purchase, ultimately having to secure my own shipping turned me away from this purchase. The dealer ship is A+++ in my opinion.

We had a terrific experience. The team was responsive, accommodated our schedules, and simply took great care of us pre, during and post sales.

Buying my BMW SUV at Atlanta Autos was a great experience. Terry Payne was a total gentleman and and the ultimate salesman. He answered every question and if he didn't have the answer he found out what I needed to know from someone else. The two issues that I had, he took care of them quickly and got them resolved. In the end, Roger handled my paperwork quickly and Terry came out and did the final walk through, a new car photo shoot, and I was out the door!!! I would definitely recommend them to anyone that is in the market for a luxury or exotic car, because they have MOST EVERYTHING THAT YOU CAN THINK OF!!!!!!!!

Had a great experience buying a used car at RBM of Alpharetta from Rich Alder last week! Rich made the process easy and pleasant, provided the information that I needed, and took the extra steps needed to get me the car in the timeframe I needed. Would definitely buy from Rich at RBM of Alpharetta again!!

There was plenty of inventory on the lot, in the price range I had in mind, and the buying experience was stress-free and pleasant! Perry York is a seasoned salesman and it was a pleasure negotiating with him. He made it so easy.

Friendly service, knowledgeable, work done well. I would have them service my Mercedes in the future.

I am always very happy with the superior customer service I received. Thank you Bobby Waites.