Very helpful service - they knew who i was and where my reservation was and gave great directions to get there. Had I wanted it, they were willing to escort me. We had a minor issue - the prior renter hadn't vacated yet and we had to circle while waiting; a little challenging in a 46' boat with a lot of traffic. We weren't too from the fuel or dinghy dock, nor from the beaches.
Now for the locale: in one week we went to Oak Bluffs, Edgartown, Vineyard Haven, and Nantucket. ACK was the best! Easy, clean beaches to go to in the harbor or right outside, great shopping, yet not too pretentious. Great restaurants.