My girlfriend bought a car from them in February and they were pretty good, and told us about the referral program. Because her experience was good she told me to try them when I needed a car. We went and she filled out a referral form when I bought my current car, and was told she would get a check for $100 in the mail. Surprise surprise it never came. She called and was told that I bought my car due to cars.com, and that she had nothing to do with it! Even though she was with me and I would have never ended up at this place without her.
To be fair, Mike the salesman is cool and the car so far is fine, but the management will screw you out of $100 on a whim even though you are spending thousands.
Oh they also bribe customers with a $5 gas card to write a good review, hence my original review being positive.