We looked at three different Mercedes-Benz dealerships when searching for a new E350, and Chris Bartolini and Angelo Ferrara at Nanuet were the most helpful by far.
It was difficult to find an E350 with the specifications that we wanted, but Angelo and Chris were able to locate one at another dealership. (Other dealers told us that there were no cars in the entire tristate area with the specs we wanted, which clearly wasn't the case since Chris and Angelo found one!)
Angelo and Chris were responsive throughout the process, emailing us quickly and giving a good quote in writing early on. We were able to get a car matching what we wanted entirely over email, making the process very efficient.