Great location, beautiful hotel
We enjoyed our stay at the Long Wharf. The hotel is clean, well decorated and has a great location. You have to go up an esculator to get to the lobby which is unusual. We stayed in the back bay the last time in Boston and we like this location a lot better. It is closer to the things we enjoy including the North End restaurants and Faneuil Hall. 
Our room was on the small side but we weren't spending much time in our room so it didn't matter too much. I didn't care for the small french door on the bathroom, it was awkward.
The concierge was helpful and the wait isn't long. We enjoyed taking the ferry to the U.S.S. constitution which leaves right across the street from the hotel. 
Be sure to eat at Legal Seafoods, it really does live up to the hype. We would definitely stay here again.