My experience was not that great. Had my heart set on the exact car I now own, but they would only give me $11,500 for my trade in. KBB.com valued it at $13,200. He said if I get anyone to give me a better trade in to take it. So I did. The other dealer that I got the Box from gave me $13,500 with just the VIN and some emailed pics.
The salesman at LM was nice, the "closer" was kind of an ass. I told him I wanted to be here at $XX,XXX for a difference of about $1600. He barely budged from what the price of the car was on the website. I told him I had already got $XX,XXX ok'd from the bank and could go no more, so he told me to put that extra $1600 on my credit card! I let my girlfriend finish her glass of chardonnay and walked. I fully intended to drive off with the new Box that day, I guess they wouldn't have been able to pay the electric bill taking a huge "hit" like that.