There is one very rude sales guy on site (Arnold) and in my opinion most probably racist, too. Completely dismissed me as a potential "customer" actually stating to another sales person that he had mentioned that he did not believe I was who I said that I was. He sells so many cars that this dealership refuses to reprimand and curb his brash abrasiveness. I took a test drive with him and he stayed glued to his phone and never once asked me a question about my interest in the product and said that I was either going to buy it or not. I did; just not through him! I complained about it and they have done absolutely nothing to decrease his presence in the dealership as I see him each and every time that I happen to cross paths with him when my car has been serviced. Lastly, I had purchased a number of warranties and decided that I did not want them after having them for a couple of years. My request to return my pro rata amounts I purchased for these insurance products was ridiculously delayed. I was told 6 to 8 weeks and I complained in about 9 weeks that I had not received anything in the mail from Penske or Mercedes. Can you believe that it took constant complaining on my part and approximately 15 weeks!!!!!!!!! until I received my first check. So, it even took about 2 more weeks and constant prodding for me to receive the last check. One item (Pre paid maintenance for 3 years) was told to me by the Penske operation I would not be able to get a refund for this product. They stated that they typically do not give refunds on this one and since I had used one pre paid maintenance already, the policy was a lost one for me. I spoke with the people at MB of Scottsdale who accidentally prematurely utilized this one service (I did not know that it was done) and they immediately issued me a check for the FULL amount of the pre paid maintenance agreement in addition told me that Penske (Mercedes Benz of Chandler) made a completely false statement to me and that these products can be refunded! Of course, I was not very happy. This is my second time with Penske operated dealers. ( I purchased a Lexus 460L from Lexus of Chandler (also owned by Penske) and I don't know what game they are playing with people's money but I had the exact same issue with getting refunds for the same types of warranties when I decided to get rid of the Lexus. I was told again, 6 to 8 weeks and it was months with constant badgering on my part until I received my FIRST check. It took multiple trips to the location to complain as well. After the Lexus and finally the MB treatment I received, I can tell you one thing for sure: We will definitely spend my money at non Penske operated/owned businesses plus Lexus and MB of Chandler are OUT as Penske dealerships, too! Buyer beware. Once they see the green; they run, and leave the state apparently! I cannot even try to give MB of Chandler a vote of confidence. I'll go to California if I have to get the same product or elsewhere in the state. Word to the wise is sufficient. Don't do it. Especially don't do it with that Arnold sales rep. The dealership probably makes so much money from his sale that if you have any issues with him or service through him, it will NOT matter. You complaints and/or concerns will fall of deaf ears. You will not matter against that mighty green promissory note from the U.S. The dollar!