We took the plunge, helped the economy, went green--we bought a new car. Already had decided on a Honda (fifth one over the years) and then a hybrid, although the price difference did make us think twice.

Although not totally understanding how Edmunds.com works (didn't realize that the dealers would contact me directly), we got a price quote via email that we liked. I think what we most liked was that the price was clear and final. We were satisfied with it, having done some price-checking beforehand. We went into the dealer, asked for the salesperson who gave us the price quote--no negotiations. 

Still getting used to a new car (other vehicles have 100,000+ and 82,000+ miles on them) and some buyers' remorse. This is the third car now for a family of four drivers.