Mazda of Roswell

First deal I had with this dealership was at Dec 2006, when I bought 2 used cars. I was naive and didn't checked their pricing well and fell into not that great of a deal. Recently I traded in one of these cars with a newer 2006 Mazda 6 with 70K. The sales person almost "begged" me to buy that car which was sitting on their parking lot for more than 4 months... after I got the right pricing I eventually bought it but the next day the engine warning light turned on and I had to pay deductible to fix the problem (good I purchased insurance) and they lost my spare key and now they ask me to pay $300 to buy new one... bottom line - use extreme precaution and check and double check EVERYTHING before you sign the deal. BTW, they try to save money and not provide you with CAR FAX (they use cheaper version of Auto Check, which is not robust like CAR FAX) - Ask for the CAR FAX and don't settle for less.