Park Ave Group also runs Park Ave BMW which I've had the misfortune of taking our 3 series to twice.
http://www.parkavemotors.com
Both times, they treated us like crap. Very rude, almost hostile.
The first time was an "emergency" tow in, while I was driving in the left lane on Route 17, the fuel pump died. This was two weeks after I got the car. It was late at night, but caused a huge traffic jam. After waiting almost 2 hours BMW Roadside Assistance came and stored the car overnight.
Oh, while waiting there trying to figure out what was wrong, someone egged us and the car as they were driving by. That probably also tainted our whole experience.
In the morning they brought it to Park Ave. They were not friendly and were very unprofessional acting at the reception desk. The service area was cluttered and there were cars parked everywhere. Even though it was an emergency tow in, they didn't look at the car for three days and didn't have it done for almost five.
I don't know if one brand is any indication of the overall group owned of dealerships, but I don't trust them at all for service.
When I was shopping, the BMW sales department was good, willing to deal, and gave me the price I had in mind at the time without haggling ($500 over euro invoice).