I've sung in a wedding band for over 20 years and the Marriott Longwharf is one my favorite Boston hotels for weddings. The hotel is located at Longwharf next to the New England Aquarium and a block away from Faneuil Hall. The Boston Harbor island ferry boats dock at Longwharf.
The staff is very attentive and friendly. The function coordinators are very experienced. As a wedding band MC and singer, I often have to take over this role at smaller hotels or wedding halls when the waitstaff is left with this responsibility. You won't have to worry about a thing at this hotel.
The reception room is very large. Unlike the Boston Harbor Hotel a block away, there are no windows to the outside. My experience is that bride's dress up the room with table linens and flowers.
There's plenty of room for a large wedding band. Loading in music equipment is convenient as the outside door is located adjacent to the reception room. Band members can pull up their cars right outside this door. All guests park at the Aquarium Parking Garage right across the street. Hotel has valet parking.
The Presidential Suite
I got married on the Edward Rowe Snow, one of the Boston Harbor Cruise ferry boats. We cruised the harbor for three hours. Then, I extended my wedding reception at the Presidential Suite at the Marriott Longwharf. I had 105 guests and most of them came up to the suite. It was not overcrowded at all. The room has a large dining room table, a glass fireplace in the middle of the room, a wet bar, and a baby grand piano. The bedroom is separate and there are two full baths. The hotel is shaped like a ship where the balconies on the top floors come to a point like the bow of a ship. The Presidential Suite has four sliding glass doors to the balcony (two on each side that comes to a point). The hotel let my bridal party check in early so we could change before boarding the boat docked in front of the hotel. It was nice to walk a few steps to the hotel after the boat cruise, up to the suite, and relax. It was convenient to be able to change out of my dress after a few hours and not have to drive anywhere when the reception was over. We awoke the next morning to an incredible sunrise on the Boston Harbor and enjoyed the views on the balcony.