Unfortunately, out of all of the used/as is cars I have bought and dealerships I have dealt with ( Russell & Smith Honda, CarMax, and Beck & Masten)...Mercedez Benz Houston Greenway is the first (hopefully the last) dealership where I have bought a used car/as is that has turned out to be a NIGHTMARE of an experience due to mechanical issues that have made the car UNDRIVEABLE !!!! I purchased/paid cash for a used Infiniti (paid about $8,000) at Mercedes Benz Houston Greenway (my salesman was Steven Pichardos) on February 28th... I have barely had this car a month and have barely driven it due to constant mechanical issues that have rendered the car un-driveable and it being in service more than once at Mercedez Benz Houston Greenway. For the past month since I purchased this car I have been driving a rental longer than I have driven the Infiniti. Since picking up my car after purchasing it from Mercedez Benz Houston Greenway , it has been a nightmare ever since due to having to return the car to the dealership several times for repairs because it was not driveable plus my service engine light came on and has stayed on throughout the service visits to Mercedez Benz Houston Greenway. One time I had to return the car the same day I picked it up after being in the Mercedez Benz Houston Greenway service shop (the car ran hot on me on the freeway and stopped on me while I was on the freeway !!!... Luckily I was able to get over in a safe place in time...I had to get my insurance to tow the car back to the dealership the same day !!!...) ...My most recent service situation with Mercedez Benz Houston Greenway concluded last Thursday, March 22nd only to have the car malfunctioning again rendering it undriveable that following Tuesday, March 27th on my way to work...I had to have the car towed and ended up having to miss work that day. After enduring this nightmare, barely having this car a month I reached out to Mercedez Benz Houston Greenway only to be told " It has been fixed 3 times already here, it has been inspected, you bought it "as is"... Basically they now refuse to fix the car. Ultimately, I have found out the driver's side catalytic converter needs to be replaced !!!! This has truly been a nightmare for me. "As is" or not, for $8,000 I did not purchase a junk car, "as is" or not, for $8,000 a car should at least be driveable and functional for longer than a week... Of all dealerships and used cars I have dealt with, this experience with Mercedez Benz Houston Greenway has been the absolute worst !!! I have read other negative reviews on the dealership and I can't help but wonder how is it this dealership gets away with these things ??? My advice, don't believe the Mercedes Benz Houston Greenway hype, especially when it comes to their used cars...Beware of their used car and service department. They care more about the bottom line, getting your money. Even after reading the negative reviews on the dealership I would have never believed the negative reviews until I found out from experience myself. Used Car Buyers BEWARE of Mercedez Benz Houston Greenway.