I had a friend buy a car from this place at the recommendation of the owner's son of all people. She bought a car from them, paying way too much in the process, and one day later the check engine light came on.
She visited a mechanic who told her the problem was related to the 4th gear, which matched up with her experience in having trouble shifting gears around 45mph. The alternator needed a full replacement if the car was going to work properly. Upon telling the dealers this and surrendering the car to their care for a full day, she came back to pick it up and they insisted nothing was wrong with it. The seat hadn't even been moved from the nearly impossible position she keeps it at for any of their mechanics to even sit in the car.
Eventually they admitted the car wasn't going to work right without spending thousands of dollars on it and offered her another car on the lot. There weren't many options though, since there was only one other car in her price range, which I find pretty hard to believe. After less than an hour of owning this new car, she says it's making a funny noise and the check engine light is on. We'll see what happens now, but it isn't looking good.